I'm thinking this may be the new norm. If you know you're going to fire a coach or he is going to retire at the end of the year why not get out in front of it. This makes your search easier to conduct as you don't have to hide behind the bushes when you want to talk to someone. You can be up front in calling coaches to see if they would be interested. You can be up front with recruits telling them to wait to see who you bring in.
Down side is that the rest of the season may be tanked because of apathy from other coaches who don't know if they will have a job or not (most likely not). You don't know if coaches looking to go to other teams will sabotage your recruits and try to get them to flip.