Patterson is gone, he's not going to MSU.
Bumphis has completely forgotten that MSU exists. He is likely headed to UF if his momma doesn't get in his way. Bama or Ole Miss if she helps make the decision.
I think you'll keep Cox and Phillips. Cox was wavering before the firing...but if you make a quick, good hire its likely he'll stay.
Boyd is gone, in my opinion.
I'm not sure a new coaching staff will want Lawrence.
I imagine that several, several MS players will be dropped by a guy like Petersen, much like Nutt dropped several of Orgeron's MS commits from last year...he did lose a couple, however (Brown, Mitchell).