I'd say penchant for putting his body in danger...

Last year in that Arizona game Wolford dove head first or dropped down head first on runs at least 3 times.

After the game, I remember Merlin and I said he better quit that immediate or he will have a short career.

Turns out that is exactly what happened against Seattle.

Hopefully he will never ever slide head first again on a run again, but at this point he hasn't had a chance outside of practice to prove it.