You do need some adjustment for the fact that...
BB
---
Noncon = ~12 games
Conference = ~18 games
Postseason = ???
FB
---
Noncon = 3 games
Conference = 9 games
Postseason = 1... hopefully 2?
By this, one out-of-conference win in basketball = 0.25 in football (or just 4:1)
By this, one conference win in basketball = 0.50 in football (or just 2:1)
By this metric, going 6-6 (3-6) in FB is the same as going 18-12 (6-12) in BB.
That means a lowly bowl game and likely bubble team are pretty similar. There is not real equivalent for the Big 12 Tournament, save maybe making the Top 2 in the conference for the conference championship game is like making the Kansas City finals, maybe?
7-6 with a win in a lousy bowl game is around Round of 32, I guess.