The Seth Littrell coaching era at Oklahoma did not go well.
The Sooners struggled offensively last season with Littrell running the offense, averaging just 288.1 yards of total offense — 176 through the air and 112.1 on the ground — leading to Littrell’s mid-season firing by Brent Venables.
Saturday, Littrell will be on the opposite side of OU’s matchup with Tennessee, after joining Josh Heupel’s Volunteers staff as a senior offensive analyst…