An offense of 11 offensive lineman.
I think it would be interesting to try because you could just run the ball down the other teams' throats, mix in a little passing, and just SMASH the other team. I would love to see an NFL team (or college team) try that. It seems like it would make talent selection easier, too. Just pick up offensive lineman, whether from draft or as UDFAs... and run it. I would think that would be less stressful on the players' bodies.
Tell me what you all think of this idea.