Remember that if the Big 12 gets $250 million for 10 teams (or whatever it is), that will average to $25 million a team. If new teams join, the conference will get $25 million more per team. However, new teams will not get $25 million initially. They will get phased in to get 100% within 5 years (or whatever the Big 12 can sucker the new teams to agree to - just remember the VT-Big East agreement).

Let's say for the first 4 years of joining, the new schools get 60% on average of their share. Let's also say they add 4 teams. So 4 teams get $15 million a year instead of 25. Thus, 60 million go to new teams, but it leaves 40 million to divide among the other 10 teams (I'm not sure WV or TCU is 100% vested yet). So, if the Big 12 adds 4 teams, the original teams get 4 million extra a year for the next 4 years in that scenario. That is a nice little increase to stay in the Big 12 a few more years until the GOR runs out...or is close enough to leave and only cost a few million toward the end. Of course, if the smaller schools fight it by saying they need to lengthen the GOR, it probably isn't worth it for Texas/Oklahoma to expand and lengthen the GOR.