There are other factors too such as endowments and university classifications. Universities want to be with their "peers". The lowest endowments right now in C-USA are hovering over $80M, Southern Miss, Marshall, and of the new members Louisiana Tech and UTSA. The only school of the old and new that is "Regional" is Marshall. Long story short, I think there are other schools that would better fit the C-USA profile.
These two schools are more apples to apples.
ODU, National classification, Hampton Roads Market, $170M endowment.
MTSU, National classification, Nashville Market, $60M endowment.
Oranges
App State, Regional classification, Boone, NC, $50M endowment.