Onuora was caretaker manager before Stimson's arrival

The 40-year-old, who had two spells at the club in his playing career, served as caretaker manager following Ronnie Jepson's resignation in September.

"Iffy did a good job for the club but we felt it was time to change things," said new manager Mark Stimson.

"Scott Barrett and I have always worked together and I think players only need to listen to two voices."