2. Texas game — Joe Bergeron's fumblegate
This was the first of two late-game, goal-line scenarios that'll haunt the Cowboys well into the future. Moments after Texas converted a do-or-die fourth down, Longhorn running back Joe Bergeron plunged in for the game-winning touchdown from two yards. Did he fumble before crossing the goal line? Did the refs fail to properly overturn the review? Maybe on both counts. But at this point, it only adds to the sting.
Oklahoma game — Belldozing through on fourth down
Imagine the Cowboys' postseason destination if Caleb Lavey wraps up Blake Bell in the backfield for a tough (but makable) tackle, clinching a Bedlam road game that OSU led throughout. We're talking about one play in a season filled with thousands. The Cowboys aren't a better or worse team, Bill Young's not a more or less qualified defensive coordinator, solely because of that failed stop. But it certainly altered the outlook for both and changed the season's entire complexion.