According to ESPN's Chris Mortensen Eagles QBs coach Bill Musgrave is a "hot contender" for the Raiders' offensive-coordinator vacancy.

Update:  The Raiders have hired Bill Musgrave as offensive coordinator.

Musgrave, a former Oregon quarterback, replaced Bill Lazor who left last offseason to become the Miami Dolphins offensive coordinator.
Nick FolesChip Kelly

Every guy mentioned above except McDermott as been a head coach in the NFL, some still are.  Having good solid coaches around is a key to success in the NFL - though I don't think losing Musgrave is a huge loss, it will be third different QB coach to work with Foles since he has been here.