Steve Fletcher has stepped down from his post as assistant manager at Bournemouth but will remain on the Cherries playing staff.
Bournemouth will look to appoint a new assistant from outside the club.
In a statement of the club's official website, the 39 year old said: "It wasn't an easy decision but I've really enjoyed the role and I love the club.
"My focus is now on helping the club push up the table and continuing the success of the last few years."
Chairman Eddie Mitchell said: "We would like to thank Steve for the hard work he has put in as assistant manager. He remains a popular and important member of the squad, and will undoubtedly have a big part to play in the future development of the club."