I always sign Bernhard Peters as my Assistant Manager and then the following - on every save for whatever club I am - Dennis Bergkamp, Oliver Bartlett (Fitness Coach at Stuttgart), Paul McGuinness, Anthony Colbert (Fitness Coach), Francis Cagigao (Scout/Chief Scout), Darragh Connolly (Sports Scientist), Bryan Klug (Coach at Ipswich Town) and Norbert Elgert (Youth Coach at Schalke)
These are off the top of my head, I'm sure there are a few more but this is a good start. All unemployed unless stated.