If we hire a defensive coordinator, Lazor could be back. If we hire someone with head coaching experience, good chance Lazor is canned.
I think there is a good chance Lazor stays no matter who is the HC, as long as that person thinks Tannehill is the guy. Nobody in their right mind should want to put this kid into ANOTHER system after being in this one for just a single year. Especially when he's shown how effective he can be at running it when he gets decent blocking.