Nothing wrong with luck or playing hard. But strongly disagree about the comment about higher-level players not caring about "win at all costs."
All the way until college, you can still get by with talent. This is such a big deal in the pros, that players go to shrinks or anyone that can give them that advantage.
In the NBA it's coined "The Mamba Mentality" with Kobe Bryant emulating his role model, Michael Jordan.
In the NFL, it gets more Super Bowls wins in 5 years with Jimmy Johnson than decades of experience from many, many coaches.
In his prime with Cus D'Amato, Mike Tyson used to go to a professional hypnotist to help boost his killer instinct before matches.
Clutch, killer, whatever you want to call it.... the teams and athletes that have it win the most. Thus the Jimmy Johnson picture above. He got it.