Give the guy some time. This is a known tough offense on wideouts. He has missed some opportunities and the QB has missed him or not been looking at the right times at him, and the line has killed some opportunities with leaks, but the players we have are going to figure it out.
Stafford needs to get his reads right and distribute the ball in accordance with the gameplan. OL needs to protect better. Robinson needs to make the play when he's thrown to. But it's not panic time yet. Let the dude breathe a bit and settle in.