the unexpected losses from '74 team. '77 defense wouldn't have become nearly as dominating as season progressed w/o Browner, Bradley, and Fry. It would've been nice to still have had Hunter in '77, esp. when Ferguson missed time w/ injuries early in season. Knott was still on roster, but he was a non-factor.
I know that there were other losses (e.g. Penick) to '74 team.