Correct me if I'm wrong, but if the Colts had lost, the winner of BAL/IND would have been guaranteed to get HOU.
With the Colts winning, BAL/IND winner gets DEN.
Against HOU, there would have been a fighting chance to go to the AFC Championship game. Against DEN, there is about 0 chance.
So, wouldn't it have been smarter to rest the starters? (not to mention one of our OGs got a concussion).