Did anyone here ever play sports in HS and and actually get coached? We had a guy on our team named Mike but if you just listened to our coach you'd swear his last name was Mike and his first name was D*****. Mike turned out just fine.
Yeah, I played for a tough coach in HS, though this was all last century. After bad losses, practices were wind sprints, pushups, and distance running while being cursed at. After the worst practice, we throttled our next opponent with how high our intensity was not wanting any more of those practices. So it does work. Of course the downside was there were some guys who quit after sophomore year, not wanting to play varsity for that coach, and half the team not wanting to play in the summer league.
I also played for a "players coach" in another sport who was the opposite always joking with everyone, having a good time, and never raised his voice. This coach could "recruit" the best athletes from other sports to play for him and had us motivated to the point that we would organize our own practices during the offseason. That team had the best season for that sport in our schools history to this day. That coach decided to just teach so he could spend more time on his family, and his kid just graduated after starting for a rival Big Ten school in football, so I guess that path works to.
I had a teammate who had a long pro career, another teammate who was a D1 All American, a boss whose team won an NCAA championship, have many friends and co-workers who played D1 sports. Enough for me to say that a tough coach is by no means a requirement for success, but if that's what some need, then good for them.