The Big 10 adds ISU, NU, and Mizzou.
The Pac 10 adds CU, Boise, and BYU.
The Big 12 adds TCU, Houston, Utah, Arkansas, and Rice.
And now I've gone cross-eyed....
Why not just combine the Big 12 and Big 10 straight up, and form the Big 23? Dr. Pepper already sponsors some Big 12 stuff, and they could just revive their "23 flavor" ad campaign from awhile back.