
Relentless
Tim. S Grover, Shari Lesser Wenk
What's inside?
Discover the secrets of achieving unstoppable success and greatness in life and career, as shared by the renowned trainer of elite athletes.
You'll learn
Key points
01The Truth About Being a Cleaner
Have you ever looked around your workplace, your gym, or your industry and wondered why some people seem to effortlessly dominate while everyone else is just struggling to keep up? The answer lies in a fascinating framework developed by Tim S. Grover after decades of working with the most elite athletes on the planet. He categorizes people into three very distinct groups: Coolers, Closers, and Cleaners. Understanding these three categories is the absolute foundation of transforming your life, and once you see these personality types, you will never be able to unsee them in your daily interactions. We are going to dive deep into what makes each of these groups tick, but more importantly, we are going to expose the raw, unfiltered truth about what it takes to reach the ultimate tier of performance. Let us start with the Coolers. A Cooler is someone who is fundamentally good at what they do. They are reliable, they show up on time, and they generally do exactly what is asked of them. If you give a Cooler a specific task, they will complete it with a reasonable amount of competence. However, they possess a glaring limitation: they absolutely refuse to take the final shot. When the pressure mounts and the game is on the line, the Cooler will instinctively look for someone else to pass the ball to. In the business world, this is the employee who waits for the boss to make the tough call, terrified of taking responsibility for a potential failure. They want the safety of the herd. They want to be part of a winning team, but they do not want the weight of the victory or the defeat resting squarely on their shoulders. Coolers are essential for society to function, but they will never redefine an industry or leave a lasting legacy. They are comfortable, and comfort is the ultimate enemy of greatness. Then we have the Closers. A Closer is a massive step up from a Cooler. These are the people who are genuinely great at what they do. They have refined their skills, they put in the extra hours, and they are fully capable of hitting the game-winning shot—provided they have a safety net or a clear set of instructions. A Closer thrives when the conditions are right. If you tell a Closer exactly what needs to be done and give them the perfect environment, they will execute brilliantly. But there is a catch. Closers are heavily motivated by external validation. They want the applause, the trophies, and the recognition. If they hit the game-winning shot, they want to make sure everyone saw it. Furthermore, if a Closer misses that crucial shot, they will often look for excuses. They might blame the circumstances, the tools they were given, or the shifting market conditions. They are excellent performers, but their greatness is conditional. Finally, we arrive at the absolute pinnacle: the Cleaners. Michael Jordan was a Cleaner. Kobe Bryant was a Cleaner. A Cleaner is an entirely different breed of human being. They do not just play the game; they dictate the terms of the game. A Cleaner does not wait for the perfect conditions because they know that perfect conditions are a myth. They create their own outcomes through sheer, unrelenting force of will. When everything goes wrong, when the plan falls apart, and when everyone else is panicking, the Cleaner steps forward and says, "Give me the ball." They do not want the final shot because they want the glory; they want the final shot because they fundamentally do not trust anyone else to take it. They are driven by an internal standard of perfection that is so high it borders on madness. What truly separates a Cleaner from the rest of the pack is their relationship with satisfaction. A Closer wins a championship, pops the champagne, and goes on a long vacation to celebrate how amazing they are. A Cleaner wins a championship, takes a brief moment to acknowledge the victory, and by the time they are walking into the locker room, they are already obsessing over how they are going to win the next one. They are never satisfied. The baseline of their existence is a continuous, insatiable hunger for more. They do not care about the applause because the standards they hold themselves to are infinitely higher than any praise a fan or a boss could ever offer. This is a difficult, demanding, and often isolating way to live, but it is the only way to achieve absolute dominance. Consider how this applies to your own life. When faced with a massive, terrifying challenge, how do you react? Do you look for someone to guide you, hoping to share the blame if things go south? That is the Cooler mentality. Do you tackle it head-on but secretly hope someone is watching to give you credit for your hard work? That is the Closer mentality. Or do you completely detach from the opinions of others, lock into the objective, and refuse to stop until the obstacle is completely obliterated, simply because that is who you are? That is the Cleaner mentality. It is not about being born with a magical gift; it is about making a conscious, deliberate choice to stop accepting the limits that society places on you. It is about deciding that good is no longer acceptable, and that even great is just a stepping stone. To become a Cleaner, you must be willing to strip away the excuses, the desire for comfort, and the need for external validation. You must be willing to stand entirely alone, trusting only your own instincts, and demanding nothing less than absolute perfection from yourself, day after day, year after year.
02Embracing Your Dark Side for Success
We are constantly taught by society to be polite, to be accommodating, and to suppress our most intense emotions. From a very young age, we are conditioned to play nice, share our toys, and avoid making anyone else feel uncomfortable. While these are wonderful traits for maintaining a peaceful community, they are absolutely disastrous if your goal is to achieve unparalleled greatness. Tim S. Grover introduces a concept that makes many people profoundly uncomfortable, yet it is the secret engine driving every single elite performer on the planet: the Dark Side. Every Cleaner has a Dark Side, a deeply primal, unfiltered source of energy that fuels their relentless pursuit of victory. If you want to stop being ordinary and start being unstoppable, you have to stop running from your Dark Side and learn how to harness it. What exactly is this Dark Side? It is not about being evil, malicious, or breaking the law. It is about recognizing that your most powerful motivations often come from places that polite society deems unacceptable. It is the raw anger you felt when someone told you that you would never amount to anything. It is the burning, obsessive desire to prove your doubters wrong and absolutely crush your competition. It is the selfish, uncompromising need to be the absolute best, even if it means leaving others in your dust. Your Dark Side is the part of you that does not care about being liked; it only cares about winning. It is the primal instinct that kicks in when your back is against the wall and survival is the only option. Think about the legendary alter ego created by Kobe Bryant: The Black Mamba. Off the court, Kobe could be a charming, articulate, and thoughtful individual. But the moment he stepped onto the hardwood, he intentionally tapped into his Dark Side. The Black Mamba was cold, calculating, and utterly ruthless. This alter ego did not care about hurting the feelings of his opponents or even his own teammates. The Black Mamba existed for one singular purpose: to destroy the opposition and secure the victory. By compartmentalizing his personality and giving his Dark Side a name and a space to operate freely, Kobe was able to access a level of competitive ferocity that most athletes could not even fathom. He did not apologize for his killer instinct; he weaponized it. We all have these hidden reservoirs of intense emotion. Perhaps you were passed over for a promotion by a boss who did not appreciate your value. Society tells you to take the high road, to smile, and to gently look for another opportunity. The Dark Side tells you to channel that intense feeling of disrespect into a burning obsession to become so undeniably brilliant at your job that your boss looks like a fool for ever doubting you. It is about taking the negative energy—the rejection, the heartbreak, the failures, the insults—and transmuting it into high-octane fuel for your ambition. When you are exhausted, when your muscles are screaming, and when your rational brain is begging you to quit, positive affirmations will only get you so far. It is in those moments of extreme suffering that you need to reach down into the dark, raw, uncompromising part of your soul to find the strength to keep pushing. People are terrified of their Dark Side because it feels dangerous. It feels out of control. We worry that if we let that intense competitiveness out, people will judge us. They will call us obsessed, intense, or even crazy. And here is the unvarnished truth: they absolutely will call you those things. When you start operating from your Dark Side, you will make the people around you incredibly uncomfortable. Ordinary people are terrified by extraordinary commitment. They will try to pull you back down to their level, telling you to relax, to take it easy, and to find some balance. But Cleaners understand that balance is a myth perpetuated by people who are too afraid to go all in. If you want to achieve things that ninety-nine percent of the population can only dream of, you have to be willing to do things that ninety-nine percent of the population are unwilling to do. Tapping into your Dark Side requires supreme self-awareness and immense discipline. It is like riding a wild tiger; it gives you incredible power, but you must remain the one in control. You do not let your Dark Side turn you into a reckless, destructive person in your everyday life. Instead, you build a mental switch. When it is time to perform, when it is time to close the deal, run the race, or build the business, you flip that switch. You let the polite, accommodating version of yourself step aside, and you let the relentless, hungry predator take over. You stop worrying about how you look or what people might whisper behind your back. You lock your eyes entirely on the target, and you let your deepest, most primal instincts drive you forward. Stop apologizing for the fire burning inside of you. Instead, start throwing logs onto it. Let it consume your doubts, your fears, and your hesitations. Embrace the intensity, welcome the obsession, and let your Dark Side propel you to heights you never previously thought possible.

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03Why Thinking Will Only Destroy You
04Thriving Under the Heaviest Pressure
05Stop Trying to Be Everyone's Friend
06The Price of Continuous Unstoppable Greatness
07Conclusion
About Tim. S Grover, Shari Lesser Wenk
Tim S. Grover is a renowned trainer for elite athletes, including Michael Jordan and Kobe Bryant, known for his expertise in mental and physical performance. Shari Lesser Wenk is a co-author and ghostwriter, specializing in sports-related books.