tOSU is almost certainly in as #4.TCU will still be 3rd. They have 1 loss against in their CCG against a top 10 team while tOSU got blown out at home. Plus the committee won't want to have a Michigan-tOSU rematch.
The real question is how do they compare against #5 after SC choked, that would be Bama.
TCU has only one loss (to a ranked team that they had beaten earlier in the season) in OT of a Championship game.
Bama has two losses, and their most impressive win was a one point over the #20 team.
If Bama gets in then what credibility the system still has is completely gone.
TCU should be #3 but if it were close they would probably still do it because they don't want a rematch of tOSU/Mich in the first round. This way it will be Mich/TCU and UGA/tOSU.