My idea is kind of radical, but here it goes: No wildcards. I would only let conference champions take part in the postseason playoff and I would let the teams left out still travel and have their December bowl games. I would use 11 seeds for 11 conference champs. I know this may seem unfair to better teams who may get left out, but I think it preserves some equity in the game between the smaller conferences and I think it would keep the integrity of the regular season in tact. Since we have to work with 11 seeds, the top 5 teams get byes while 6 plays 11, 7 plays 10, and 8 plays 9 for the first round. Teams get re-seeded after the first round.
As an example:
Round 1 Byes
----------------
1. LSU
2. Oklahoma State
3. Oregon
4. Virginia Tech
5. Wisconsin
Round 1 Matchups
----------------------
(Higher seed gets homefield)
6. Houston
vs.
11. Arkansas State
7. TCU
vs.
10. Northern Illinois
8. Louisville
vs.
9. Louisiana Tech
Round 2
---------
12:00 @ Atlanta, Georgia
1. LSU
vs.
9. Louisiana Tech
3:30 @ Atlanta, Georgia
4. Virginia Tech
vs.
5. Wisconsin
7:00 @ Glendale, Arizona
2. Oklahoma State
vs.
7. TCU
10:30 @ Glendale, Arizona
3. Oregon
vs.
6. Houston
Round 3
----------
3:00 @ Miami, Florida
1. LSU
vs.
5. Wisconsin
7:30 @ St. Louis, Missouri
2. Oklahoma State
vs.
3. Oregon
Round 4 (Championship)
----------------------------
8:30 @ Arlington, Texas
1. LSU
vs.
2. Oklahoma State
Okay, I know this is my desired matchup, but let's ignore that for now. This is just an example

I would like to your playoff scenarios! How many teams, wildcards, auto-berths, etc.