Previously Big Ten got way more money from TV carriage in states where teams in the conference were than non Big Ten states. (.10 vs .70). If that’s still the case, then they could look Syracuse, an angry A&M, GA Tech, UNC, UVA, Mizzou(in addition to the ever-present ND wish) That said, If I recall the exit fees ramped up for the big conferences after the last round. Big 12 collapse would solve issues with that for Kansas(3M people but you’d expect near full buy-in for cable), but may make the above not feasible without going into other reasons those schools wouldn’t leave