I think they already recognize they need a CCG. They were an early adopter, so I think they have a good grasp of why it's beneficial.
The issue is finding 2 schools. BYU could be an obvious one... maybe Boise State?
I don't know, as it stands right now they're the only conference actively looking at Mid Majors... PAC is the only other conference to recently admit a Mid Major (Utah).
The B12 is financially weak, structurally weak, geographically limited (overwhelmingly in Texas and losing ground), and surrounded by 3 very large conferences that'd love to poach some of their schools - particularly the ones in Texas (4 conferences if you count the ACC, which I imagine would be open to adding WVU.)
Anyway T Boone Pickens wants to add Memphis and SMU.