You can only really yell at the players you trust.
This season isn't going to be without several crises. There's no doubt about it. They're coming.
If the players don't trust the coach, it is a problem, and vice versa.
Resourceful coaches strive to have more ways to win than the other team.
Hey fellas! This is what you work all off season for. This is why you lift all them weights! This is why you do all that!
In the end, I've found, people like the direct approach. It's much more valuable to them to have a leader who's absolutely clear and open than to have one who soft-soaps or talks in circles.