There are reasons for the Air Force Falcons to consider not moving to the Big East Conference for football-only, but David Ramsey of the Colorado Springs Gazette has brought another reason to why Air Force should not join the Big East with the Navy Midshipmen.
If Navy plays, say, Louisville before Air Force plays Louisville, the Midshipmen would probably roll to 300 yards rushing while the Cardinals tried to figure out the option. When Louisville's defense faced Air Force, the Cardinals would be ready. I'd predict the Falcons' rushing output would drop by at least 100 yards. Precision is a big part of Air Force's rushing success, but so is novelty. Defenses can't stop what they don't understand.
Ramsey is correct in his thinking, because the run-option offense is the reason why Air Force has been able to keep games close, and even beat, better teams at times. With teams able to see the offense twice a year it would diminish the advantage that Air Force's offense has and the end result could be more losses.
This is a different view point to why Air Force should not join the Big East and it joins the list of other items such as fans not wanting to make the move or the big reason is that there are still questions if the Big East will even be around in a few years.