Hit: Elite. He can hit for average, he can hit for power, he can flat out hit. The bat gets to the ball quickly and without wasted movement. This is his carrying tool and it will offset the concerns regarding his position.
Field: Here is the question, where will he play? He has good hands and feet behind the dish, but the arm is not accurate or strong enough to ever be even average, which could prove to be an issue. Some feel he can move out to left, but the lack of speed leaves plenty of concern regarding his range. That leaves him at first, where his bat can play.
Summary: No question he can hit, and there are some who truly feel he will stick behind the plate, which would make him an incredibly valuable. I think the catcher is the most valuable defensive position on the diamond, so I am not sold he sticks there, therefore I am lower on him than some. Also, a bat as advances as Wells’ will be able to move through a system quickly, not allowing him the time to develop defensively. This all points to him being a first baseman long term, and that just hurts his overall value, although the pure bat tools are among the best in the class.