Burke has an extremely high IQ and Gase covets that. Gase hand picked Burke so don't hold your breathe waiting for Burke to be replaced. BTW, nobody was going to look very good on the defense but it was largely the fault of the anemic offense which produced a huge amount of 3 and outs as well as turnovers. The defense was constantly on the field way more minutes per game so it's not a shock that they were gassed in the 4th quarter quite often last season.
The return of Tannehill will breathe new life into the Dolphin offense. The defense will benefit immeasurably from playing with the lead sometimes, enjoying better field position and of course, not having to defend short fields after brutal turnovers. (as often, we hope)