Simon Amor has thanked the England Sevens players that are leaving the set up following the conclusion of the HSBC Sevens World Series.
Christian Lewis-Pratt, who finished fifth in the 2012-13 Series total points scorers with 221, is among those leaving.
Marcus Watson, brother of England international Anthony, and Jeff Williams are also graduating after signing for Newcastle Falcons and Bath respectively.
"Both Marcus Watson and Jeff Williams have been with the programme for a number of years," Amor is quoted by ESPN as saying. "Marcus was outstanding towards the end of this season and has given a massive contribution to the Sevens programme over the year.
"I am also delighted for Jeff. He's done fantastically well for England Sevens. He was developed well within the Sevens programme and gets an opportunity to further his career in the 15-a-side game with Premiership finalists Bath."
Samson Egerton is one player who will be joining England Sevens once the new Series gets under way.
The Oxford University graduate became the first player to ever receive a red card in the Varsity match with Cambridge University in 2013.