Quite clear Rudkin either needs replacing or needs help so I’ve done some digging and these options for technical/sporting director role would be decent:
Arnold Bruggink (DOF at Twente, friends with RVN)
Eduardo Macia - currently at Spezia with a decent track record at us, Fiorentina and Liverpool.
Simon Wilson - currently at Stockport (way too good for them)
Oliver Ruhnert - done an outstanding job at Union Berlin.