When did it become established that Haack can't run? He seemed pretty mobile to me. He's not exactly Metzenberger looking like a newborn giraffe back there. I think what HUD means is using Nixon in short yardage or goaline rushing situations where we need his size, and the fact he can throw keeps people honest. I really don't think this is as much a competition as HUD has been letting on. But given I have Zero first hand knowledge that's just a guess.