Patriots executive vice president of football business Robyn Glaser plans to resign from the team, a source confirmed to the Herald.

Glaser worked in the Patriots’ facility this week and was open about her intention to leave the franchise, according to a source. Glaser leaves after 18 seasons with the Patriots, serving initially as an advisor to ownership in 2007, then a vice president starting in 2011 and senior vice president in 2018. She was later promoted to senior vice president of business affairs and chief administrative officer of football four years later.

Glaser primarily dealt with contracts, budgets, league compliance and other football business. She developed relationships with team leaders, including retired safety Devin McCourty who posted Friday on social media calling her a close friend.

Last season, Jerod Mayo chose to add Glaser as a personal advisor over his only year as head coach. Glaser continued to work closely with ownership, which fired Mayo on Jan. 5 and last week hired Mike Vrabel to replace him. Under Vrabel, the Patriots continue to remake their football operations as they attempt to reboot the franchise following their fourth losing season in five years.