They were clearly looking to get his speed involved on crossing patterns. I didn't see a ton of speed, but it could be that in college he was outclassing a lot of his coverage in the speed department and in the pros there won't be as much separation. Also, on the non catch on the sideline, I don't know if it was timing with Flacco but he didn't really make much of a play on the ball. The catch over the middle where he was short of the first down was a "meh" play. And the other non catch on the ball thrown behind him while crossing really didn't look like his fault.
All in all, I'd give him a C.
All in all, I'd give him a C.