Perhaps. I hadn't thought about his route running, but I don't remember him being as bad as you say. I was thinking in terms of the drops (much like Njoku). He had better get a handle on those. I remember him getting open a few times last season.
My problem is that people just don't seem to realize how bad our QB play really was and how it affected the receivers, and Samuel in particular. Equally bad, for this argument's sake, was the disjointed and imbalanced play calling. There was no continuity except for CMC, and even less creativity. Our offense was uninspired on steroids!