Ex-Arundel manager Simon Hull is the new man in charge at The Lashmar.
Hull replaces first team boss Lee Thompson, who departed EP, along with assistant manager Kevin Punter, on Wednesday.
The new manager at East Preston will be joined by a trio of ex-Mullets coaches.
Rick Jarvis has joined as assistant manager, Joss Parson has been named as head coach, and Nick Tolhurst has been appointed goalkeeping coach.
Hull, Jarvis, Parsons and Tolhurst were all relieved of their duties at Mill Road on Saturday.
Mike McCaffrey has also returned to The Lashmar as under-23s manager after a short spell away.