I've heard players he coached before say he could motivated them in different ways. I forget who it was, but before one game in the locker room coach Fisher sat down next to a player and recited his whole past (career) of football and talked about everything he's had to overcome to get there. Stuff the player had no clue he even knew or cared about. Every player you talk to loves him.
I'm pretty big on motivation too. I don't care what level it is. It's an emotional game. I've dealt with it first hand. Coaching, even if not the x's and o's makes a huge difference. Especially when you're playing for a guy you don't mind breaking a few bones or clawing for that extra yard just to save a down.