You may very well be right, but see 2014 (looking at it right now).
Lost to a marginal team, beat two ranked teams all season including an incredibly overrated WI in the B1G championship. Needed OT to beat a marginal Penn State. They were #6 heading into Championship week so that's different, but they were #13 to start November.
It will be interesting.
They will play a marginal Northwestern team barely rated in Top 25. Let’s root for an Illinois upset and knock them out of the rankings.
So the Committee doesn’t judge the BODY of work in the season. Simply one game performance.