Benching Bowe is not a decision I would make lightly. However, I think drops, especially the easy drops (which Bowe has a lot of), can absolutely kill an offense. It's like a batting average, if you get 170 plate appearances and your average is 200 ... you're not in the starting lineup. We would be better off with a slower more sure-handed replacement.
For me, anyone on the bench will do. Sit him down until he can prove that he can stop making easy drops.