What I meant to say is that OSU's presence in Ohio would prevent the SEC from considering Cincinnati, as UC draws from a very localized city population versus the entire state of Ohio. In other words, UC doesn't really bring anything to the SEC table in terms of fanbase. ECU has a bit of a stronger case for the SEC than UC IMO.
I think Cincinnati has a much stronger case than ECU. Cincinnati has >43k enrollment (largest in it's history), resides in a very fertile recruiting ground (usually ranked #3 behind Texas and California), has much better academics (#63 top public schools - tied with LSU and UK according to US News - ECU is unranked), has much better brand recognition (non-directional school - BCS history - very good basketball history), and sits in a state with the 7th most population but just one Power 5 team (NC has 4.) And as important as football is to the SEC, the commissioner has repeatedly expressed disappointment in the basketball side of the conference, something Cincinnati can help in (2 national titles, 6 final fours, 28 tournament appearances including 4 straight.)
