Majority of the athletes are already coached by Julian (7/12 of the roster to be exact) so I would think most will go with him with Tim Rowbury helping out on the side and Salazar sending workouts for Rupp and Hasay. Kijelcha, Hassan, and Clayton already do a good chunk of their work with Julian's sub-group anyways. Seems like a lot of athletes for Julian, but Schumacher does just fine with Pascal helping. His 5 athletes will be taken care of.
No one will leave, nothing will change. NOP will continue to dominate.