The NCAA enacted stricter bylaws to hold coaches more accountable in October 2012 and completely changed its penalty structure. Because the infractions at Louisville happened before and after the new infractions process, the committee compared the two penalty structures and opted for the more lenient one.

Carol Cartwright, chief hearing officer in the case, explained the decision this way, "It's our process that when violations occur both before and after the new structure, we do the analysis. In this case, the violations were about evenly distributed between the old and the new. It's our standard process in those cases to use the more lenient process and that's what we did in this case."


http://www.espn.com/mens-college-bas...-sexual-nature


We've speculated on how the infractions may be split. Maybe that is this reason why the NCAA sent the 2nd NOA. Maybe they want that one punished under the new matrix.