I agree with this but part of his problem last year was injuries around him. Turner was hurt for half of the year and Harry Douglas went down in pre-season which took away his slot/speed receiver. Norwood was also hurt (as usual). That left him with defenses doubling Roddy White because he was the only real deep threat out there with Douglas out. Jenkins is just a "possession" receiver who seems to drop as many as he catches.
All that said, this is an important year for Matty Ice. He must be the leader of the offense and spray the ball around. If he does that, we are going to be dangerous. Tuner can run wild again if Ryan can back the defense out of the box with a consistent passing game.