Our last chance to win was to call for a fair catch on the punt after safety with 1 second left, then bring in Ehlinger for a rollout Hail Mary to Pierce and MAC. The multi-lateral return only works in college--not the NFL.
Not a "what if" play, but a what-if game: Colts go undefeated into the last game of the 1967 regular season, and are knocked out of the playoffs by LA Rams.