I've heard Elarbee, Golesh, and Halzle are all coming with him from UCF.
I think there's some question about being Kodi Burns from UCF (who he has just hired before he left) or retaining Tee. Osovet is another possible holdover as he interviewed at UCF (I believe for the WR position that Burns filled). Could also bring Matt Merritt from UCF for RBs. Eddie Gran would be a home run hire for RBs.
As for defense, absolutely no idea. Probably no one from UCF I can say that much. I still think Steele ends up with the job as DC. Garner as DL coach makes sense even if we don't hire Steele. Kevin Simon would be a good hire for OLBs. Willie Martinez could come from UCF, but I'd put that under doubtful. Obviously the history is there though.