It's clear now that Vic Fangio will not be the new Dolphins head coach, but this does not mean that the team is suddenly incapable of changing up the base defense from a 4-3 to a 3-4.
Whoever the new head coach is, there's no telling who their defensive coordinator is going to be or what their preferred defensive philosophy is going to be, so let's take a brief moment to best estimate what adjustments the Miami Dolphins will need to do in order to adapt to that particular scheme; particularly after operating under a 4-3 for so many years.