If you wanna go there, then use Wally Pipp and Lou Gherig.
The thing is with Alex Smith/Kaepernick or Pipp/Gherig, is that the replacement ended up being better than the hurt player. They didn't get replaced because of injury. They got replaced because the guy behind them was actually a better player.
Derrick Rose's replacement is not better than Derrick Rose.
Clearly In my mind it depends if they win tonight or not. If they Win the not yet. They'll be up 2-0 and in their house. Now if they lose game 3 then definetly do a Willis Reed Moment and have him suit up for game 4 and play for a few minutes in the beginning. The energy will be off the Charts and you can have someone else be the Clyde Frazier dominating the game.
Now if they Lose tonight I think It depends on how game 3 does. Lose game two and three then pretty much forget it and let him rest till next season.