No expansion candidate is perfect but I think exposure in greater MSA's would be good for Big 12 programs. It's more than just sports but also promoting your school to young minds. This is where Cincinnati and Connecticut would benefit the conference. Going into the Eastern Time Zone more fully gives you two programs ready to compete at a P5 level while exposing B12 schools to high schoolers in Ohio and New England.

If I were to design divisions it'd be tricky, being that UT/OU may want to be in the same division.

UT, OU, KU, OSU, WVU, ISU
TT, Baylor, TCU, UCONN, UC, KSU

UT-Baylor, KU-KSU, WVU-UC, TT-OSU, ISU-TCU and UCONN-OU would be protected and the rest of the cross-division games would be rotated.