It’s funny because I actually was thinking about this today. I think RE hurt his legacy by coming back for a round 2. That being said, he absolutely needs to be recognized for being the coach laid the groundwork of success for this program. You can’t ignore a BCS game and 3 bowl game victories, on top of a conference title. Plus the number of players he put into the NFL. It’s hard to really appreciate this because of the poor taste RE v2 left.
As for the MT Rushmore, you’d need to add Jim Penders for sure.