ESPN Cleveland's Tony Grossi feels that WR Carlton Mitchell's roster spot is in jeopardy this offseason. Impressed by his size (6'3/215) and speed (4.41-4.49 forty-yard dash), the Browns drafted Mitchell in the sixth round back in 2010. Two years later, he has yet to emerge. The Browns are sure to add talent to the wide receiver position via this weekend's draft, so Mitchell has his work cut out in training camp.