My issue is the number of "big wins" that are left on the schedule... OU has Baylor, Kansas, Kansas State, Texas, Texas, and Texas A&M left on the schedule to get "big" wins.
They need to beat Kansas State, Texas once, Texas A&M, and Baylor to get in the dance. Quality wins are a big deal for the NCAA Tournament and right now OU doesnt have many quality wins (if any)... Missouri was the best win of the year, but it probably doesn't impress many outside of Big 12 country.
Then they have to take care of business in Lubbock, Lincoln, and Boulder.
Bottom line, they have to beat K-State, Texas, A&M, Baylor, Nebraska/Colorado, Iowa State, Texas Tech to get in. That would give OU 9 conference wins and some big wins.