Two schools of thought. You either don't care about conference relevancy beyond the SEC and B1G and want to continue having a group of people pick the playoff field (with a more dialed in criteria), or you don't want 13 of the 16 playoff teams to (likely) be represented by the SEC and B1G, because that's what a 5+11 model will likely mean in most years.I just listened to one if the recent GameDay podcasts with Rece Davis and Pete Thamel and Rece said he would like the 5-11 model with the at-large bids being a combination of the committee's rankings along with a set agreed upon formula that would consist of strength of schedule and SOR combination. I believe he said the weighting would be two-thirds committee ranking and one third the SOS/SOR ranking.
He also added that a format which consists of too many autobids, like a 4-4-2-2-1-3 would make it too cut and dried which is not what college football is or has ever been.
IMO, the 5+11 format is incredibly bad for the Big 12 and slightly less bad for the ACC, but that's the format that Yormark has publicly supported for some reason. Honestly not sure why since he has an option to back a format that would guarantee his league gets 2 teams in every year, with the potential for a third, instead of just 1 in most years, with a second in rare occasions.