So Oregon St. beat us because we couldn't get any pressure. Whether they had Mannion or Vaz really didn't matter to why we lost.
Now Texas in 2011 (I'm going completely off of memory here so I could be completely wrong) we were in control defensively and then they brought in their backup and the game plan changed and it threw us for a loop (as an aside, I don't think any sane human can "blame" our D for that loss but that is beside the point).
As to the Ratliff/Brian Johnson '05 game, I think we beat them if BJ plays. He was a turnover machine in '05. Utah got better when he went down.