2010 was definitely the year of the midseason firing. Wade Philips, Brad Childress, and Mike Singletary all got the boot before the year was through. But was firing these guys before the season ended a smart move?
The biggest reason not to can a coach midseason is of course, the disruption to the team. There is always a chance that the players could become less focused because it means (potentially) learning a new scheme or at the very least a set of rules. New sheriff = new rules. New atmosphere. While that can be a positive thing, if a team already has its share of problems, a new coach might only serve to exacerbate the ones already there. Sometimes what is wrong with a team goes deeper than the coach, and takes years to correct.