For one, there seem to be a lot more moving parts in the coaching carousel than usual, increasing competition making it harder to identify clear candidates
Plus, with early signing out of the way and currently being in a dead recruiting period, it reduces the urgency to lock down a coordinator. No need to rush. It looks like we had a primary candidate that Allen interviewed, but negotiations didn't pan out, nothing really odd about that.
Looking back, Wilson hired Allen on Jan 16th. While Knorr was technically let go the same day, Wilson probably informed Knorr he wouldn't be retained a few weeks earlier, but as a courtesy was given the opportunity to look for positions without being publicly fired first