I think the Big Ten just doesn't want to be left when no other Top teams are left .It is funny that after Texas and Oklahoma bolted for the SEC, the B10 stood on the moral high ground stump and criticized the SEC for destabilizing college football.
Even going so far as to form the "Alliance" with the ACC and hahaha, the Pac 12 to counter the "threat".
The Pac wasnt even looking when their partner conference slit their throat.
USC could have went to the SEC just as well ...
You just never know when the SEC will continue to ruin College Football by poaching even more teams.
I much proffered when we has multiple conferences and fun deciding who was best in the playoffs .
Soon we'll have 2 or 3 conferences which will amount to a few Top teams and the other 25 teams in the conference playing for nothing.