The Portuguese has added fellow countrymen Joao Mario and Bruno Lage as coaches, while Jhony Conceicao and Paulo Sampaio will join the club as additional analysts.
Britton, who joined the coaching set-up under former manager Paul Clement before taking over as caretaker boss for the last two games, will not be part of the backroom team after the midfielder decided to concentrate fully on playing again this season.
“In fairness to the manager and chairman, they offered me the opportunity to stay as part of the new coaching set-up," explained Britton, who stepped up into a player-assistant coach role on November 13 following the departure of Claude Makelele.
“They left the decision entirely down to me, and I had to decide whether I wanted to be a coach or a player.
“I thought long and hard about it and while I enjoyed the coaching experience and learnt a lot in a short space of time, I still feel I can have a positive impact on the pitch as a player. I think that will be more beneficial to the club at this stage of the season.
“I am not ready to retire as a player yet, so I will review things again at the end of the season."