With the NFL filling head coaching positions, its time to fill out staffs. This means Jimmy's staff and coaches will start to get offers and new opportunities.
Bruce Feldman mentioned on twitter that he wouldn't be surprised if Pep Hamilton joined Gruden's staff in Oakland. For many Michigan fans that would be a positive hire for Michigan's program.
There is an interesting term in Dan Enos contract that his salary right now as $150K unless "Coordinator" is added to his title, which would include a $750K raise. This is probably in place until Pep or Tim (or both) move on.