Coaches have some insane schedules, but...
They're making 1 or 2 million a year. $7 if you're one of the best. If head coaches get fire, most end up being asst coaches...
Avg salary of NFL assistant coach is $350000 to $375000
So no matter how stressful shit is... you're making $1000 to $6000 a DAY to put up with that kinda pressure. I know college kids that work touch cashier jobs & classes that are probably under just as much stress... and they're broke as shit.
So while it's a highly competitive job, it's just playing a game. It's personnel & matchups and math & motivation and more... but like TA said, a cop worrying about getting shot for $32,000 a year is sure under more stress than a coach making 30 times that much $$.