He doesn't. Harvin didn't return a single punt against GB. In fact, Tavon did both punts and kickoffs last year while Harvin hasn't returned a punt in his CAREER. I think you've got them flipped.
He was a rookie and wasn't comfortable with the playbook. He dropped 0 passes over the next 7 games. If you have bad hands, you have bad hands. Players with bad hands don't go from dropping a lot of passes to dropping none at all.
I'm getting tired of having to talk about patience. In fact, I won't. Go ahead and judge what players are or aren't based solely on their rookie years. You can go ahead and let me know how accurate you are in the future.