Former Chelsea midfielder Jody Morris has been appointed as Derby's assistant manager, the Sky Bet Championship club have confirmed.
The 39-year-old leaves Chelsea, where he had been their under-18s' coach, and links up with ex-Blues team-mate and new Rams boss Frank Lampard.
Lampard told the club's official website: "The team around you is hugely important. It's not just about me as the manager. Everyone will have a part to play on the staff and Jody is the first part of that. I am delighted to have him on board.
"Jody has been hugely successful with Chelsea's youth team and he has won everything there is to win in the last few years.