Foxborough Superintendent of Schools Debbie Spinelli confirmed the rumor to Foxborough Patch on Wednesday.
"Yes, [Najarian] is regretfully leaving Foxborough," Spinelli said. "He called me last Saturday, June 16, and submitted his resignation letter only [Tuesday]. We had a great conversation about how this move will improve quality of life for his young family ... he lives in Northboro."
Najarian is expected to begin in Holliston on July 1 and Spinelli said she hopes to hire his replacement in Foxborough by the end of July.
"We will post and advertise the position this week, and hope to hire a new AD by the end of July," Spinelli said. "There will be no interim."
Najarian could not be reached for comment Wednesday.
Prior to serving as Foxborough High School's Athletic Director, Najarian spent 12 years coaching baseball.
"I got into coaching right out of college," Najarian told Foxborough Patch in a Feb. 5, 2011 Q&A. "I coached at Brandeis University for three years, Wheaton College for two years, Boston College for one year and finally Holy Cross before coming to Foxborough. In 2007, I applied to Foxborough. This opportunity came up and it was a great fit. Foxborough is full of great people. It is a great town and has been a tremendous move for me."
Looking back at his time in Foxborough – as of February 2011 – Najarian said one of his favorite memories was in his first year when the Warriors' football team was coming off a Super Bowl victory.
"In my first year the football team was trying to defend the Super Bowl championship," Najarian said. "It was an exciting time."
As Najarian moves on to become the Athletic Director at Holliston, he said his favorite part about the job is the strategy of putting together the coaching staff.
"It is really the same as trying to coach a team," Najarian said. "I like the strategy of finding good coaches to put in charge of programs. To me, that is the backbone of [an] athletic department. [The] coaches are the ones who are dealing with the kids one on one. It is important to try to find those coaches who are in it for the long haul. The fun part for me is trying to build a great staff."
Spinelli said Najarian will be missed in Foxborough.
"Craig has brought professionalism and organization to our athletic department and has a history of hiring talented coaches," Spinelli said. "He is well respected in his field and is a positive role model for our student-athletes. Craig will be sorely missed, but he has created a solid department and is leaving our legendary Foxborough athletic program in great shape. He is a dedicated administrator who will be available to ensure a smooth transition for our next AD."
Foxborough Patch will update this story with comments from Najarian when he is reached.