Casey is the most versatile player on this roster, and he's under contract. I expect his workload to increase next season as he continues to get stronger. He's a willing blocker who did far better in the FB role pre-injury than I expected him to, has excellent hands, and runs routes plenty well enough to be a factor in the passing game. Vickers is a bit more bruising, but Foster and Tate both amaze me with their ability to get skinny and squirt through closing holes. He's a mismatch for everyone but corners, and it'd be a crying shame to lose him. Kubes said in preseason and again after the injury that the offense was essentially built around his athleticism and versatility. He's got the skills to be an effective TE, and he's tough across the middle. His performance as a run blocker coupled with guys like Angry Dre and OD that can stretch the field and work the seams make his abilities as yet ANOTHER pass-catching option out of the backfield a potential nightmare for opposing defenses. Assuming we don't see a Packers-esque drop-off on the defensive side of the ball, and we manage to add a legitimate threat at WR2, I can't see a single reason that's not game planning related as to why we shouldn't be the NFL's top offense next season. With all the free agents we've got coming up in 2013-14, next year's our year.