What’s possible and what’s probable are at odds. It’s last-gasp time in Columbia, where the Tigers’ greatest challenge of the year also presents a grand chance. Missouri football has lost its leeway. The Tigers are locked outside of the door to the room for error. A two-loss October, with both defeats coming in one-score games, have set up a four-game November stretch where the next loss marks the end of the line in the chase for a playoff berth. The Tigers (6-2, 2-2 SEC) are down to QB3, true freshman Matt Zollers, with Beau Pribula and Sam Horn out injured. The nation’s No. 3-ranked team, with the No. 1 third-down defense, is coming next. Down to its last lifeline, Mizzou gets a visit from...