Honestly, I've said this before... many times with fumbles, it comes down to coaching.
With Tiki, the guy actually LISTENED and held the ball differently. But then we had Plax, Shockey, Bradshaw, etc... none of those guys were "high and tight" guys, and they were all fumblers. Instead of reinforcing it through coaching and actually enforcing it, those guys got more playing time... never once did Plax go the bench after he held the ball like a carton of eggs.
I'm telling you right now, Nicks is a fumble waiting to happen... watch how he holds the ball... two points, away from his body. You learn THREE POINTS OF CONTACT in fucking pop warner. How can these assholes not know that?