Basically, it is "just another scrimmage" and the HC will pick whatever format will best inform him of where the players are, at that point in time (in front of a lot of observers). For the less-tangible purposes of impressing recruits and fans and having fun, what would you prefer? Offense #1s vs Defense #2s and vice-versa or some mix/hybrid? Should the Offense #1s go head-to-head with the Defense #1s at some point? (I watched the NBA All-Stars split into THREE teams and play a mini-tournament last Sunday but there isn't enough time nor players to try anything that unusual.) IMHO, the WORST part of the Spring Games I've been to is that some were over really quickly due to the clock not stopping in the 2nd half.