I think your opinion was tainted by watching Avery drop a few balls when he was playing with a dislocated thumb. He is a very good prospect.
From Scouts, Inc.:
Donnie Avery, WR, Houston: He was one of the three most impressive receivers on the field this week from both squads. Avery seemingly got open on every route and, for the most part, didn't drop a pass that was catchable. His route running was very impressive, as was his speed. In fact, he got to the second level pretty easily, and defensive backs were trailing him for most of the week. Avery had the catch of the week on the first day of practices, when he timed his jump perfectly on an out route and came down with two feet in bounds.