If Press Taylor moves, it will probably be up to OC.
My recollection is the Eagles didn't much like DeFilippo, they could have kept him if they'd wanted to. Had no interest in bringing him back last year (even temporarily) either. And he might not have any interest in being an OC who doesn't call plays (not that he's a hot commodity).
The coverage last week all pretty much unanimously felt that Lurie forced Doug to fire those guys. Much like Kapler with Mallee except Doug has a lot more capital/track record.