The rumor I've heard from a good source is that the Ninja withdrew some of Mullen's DNA in the dead of the night, and he's working on a clone as we speak. For that matter, he plans to have the process perfected by January 5 (per TheBigDA), and he's going to fire Mullen and his staff and replace them with 10 Mullen clones to handle all coaching responsibilities at MSU. The best part about this plan is that I hear he's working on a legal arrangement where he will own all rights to the clones he creates, and therefore he will receive their services for free. He may even sell a few of them to neighboring schools for profit. So he'll simultaneously cut costs and increase revenues at the same time.
Of course the best part is when you make a clone of a clone, it's automatically dumber than the previous one. It's a scientific fact. I know this because I saw Multiplicity with Michael Keaton. Therefore, Byrne will effectively be the only person, outside of Mullen himself that will be able to clone Dan Mullen and get an intelligent Dan Mullen. Those schools that purchase a Mullen from Byrne will not be able to clone their Mullen clone with similar results. This basically gives Byrne a monopoly on the Mullen clone business. It's pure genius. But as usual, take it for what it's worth. It's only a rumor at this point, and I can't claim that it's 100% true.