A few problems:
1. This offense probably works best with a mobil QB. He doesn't have to be the second coming of Cam Newton, just someone who can gain the respect of the defense on the option. Oh, and we have two QBs coming that fit this mold. People also forget the CBJ's offensive scheme is hard to pick up on. WRs have a very hard time mastering the routes of this offense, and the QBs in this system have to be accurate over the middle of the field consistently.
2. Our o-line sucks, not just because of youth, but also because guys are having to play new positions. Thomas is probably best suited inside at C, but we need him a RT. Kerbs has stated he is best at G, but we need him at LT. Kendrick is best suited at RT IMO, but he has been playing both T spots. Due to depth we are having to play guys in new positions, and this isn't an easy, quick fix to our o-line problems.
3. The running play calling isn't the entire problem to our running game issue. The problem is a combination of the o-line sucking it up, bad play calling in specific positions on the field, inconsistent QB play at times, WRs not creating space in 1 on 1 battles to allow for us to get huge plays down the field, and players not executing the play correctly.