I guess regular mortals like us have a hard time understanding why someone good enough to be drafted by an NFL team (even in the 7th round) would toss it away before they've even started, but I guess if the passion isn't there or you have worries about potential brain issues down the line, or whatever it might be, then you're not going to have any hope of being even half the player you hope to be. Some guys probably try and stick with it just to make some money, but I kind of admire the ones who say "this just isn't for me" and go off to do something else. It must be a tough decision.