True but let's go through some scenarios.
1. Oregon wins out, OSU wins out, we are 11-1, we'll call IU 11-1. OSU wins ccg, I don't see us getting #5 over Oregon who lost in the ccg.
2. Oregon wins out, we beat OSU and are undefeated, IU loses to OSU. OSU would have 2 losses. Definitely the loser of ccg getting #5.
3. Oregon loses once, OSU beats us and IU. 4 teams with 1 loss. Tiebreaker creates the ccg, can't see the team who gets 2nd loss dropping below the 3/4 Big 10 team.
And this doesn't include any SEC scenarios, who might have a better 5 seed candidate by the time we get there.