Former Scotland and Aberdeen midfielder Eoin Jess has joined Championship Peterborough as first-team coach.
Jess has agreed a three-year deal at London Road and replaces Mark Robson, who left June to become Barnet's head coach.
"I have been very patient and quite meticulous in getting the right one in. After doing my research on him, it became apparent that his philosophies are exactly the same as ours and that was the most important thing," boss Darren Ferguson told the club's official website.
Ferguson added: "It is no slight on Gavin Strachan, in fact it is a compliment to him that I want him to remain with the youth team because I see that as such an important role in getting players through."