ProFootballTalk ProFootballTalk Dolphins making change to 4-3 defense wp.me/p14QSB-LiG Dolphins making change to 4-3 defense The Dolphins are changing the most successful part of their team. The organization has decided to transition from the old Parcells/Sparano/Nolan 3-4 defense to a 4-3 attack for 2012, according to Ben Volin of the Palm Beach Post. This is an odd decision for a few reasons. First, the Dolphins defense has been rather successful the last two years. Miami finished sixth in points allowed in 2011, and sixth in yards allowed in 2010. It wasnt a perfect group, but their talent seemed well suited to a 3-4 defense. The other odd part: The team doesnt have a defensive coordinator yet. Mike Nolan has left for Atlanta and Todd Bowles is not expected to return. G.M. Jeff Ireland reportedly told his scouts to start looking for 4-3 players back in December. At this point, Bengals secondary coach Kevin Coyle sounds like a strong candidate for the defensive coordinator post. The change in defense will make Cameron Wake a defensive end again.