“Sometimes they do this on purpose, like when a coworker goes behind someone’s back and starts spreading rumors about them to try to make themselves look better. But usually, these small thinkers are sabotaging the team’s mission without even realizing it, like when they whine or complain or have a bad attitude on days when they’re not feeling great. That negativity spreads to others. “In my line of work, this type of small thinking could be as simple as a player telling himself, ‘It’s okay to take a few plays off, nobody will notice,”
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Darrin Donnelly,
Think Big to Win Big: The Bigger You Believe, The Bigger You Achieve