Montgomery County students are set to return to school Monday under their first new superintendent in 12 years. Imported from Stamford, Conn., Joshua Starr will have plenty of classroom additions, two school reopenings, and a couple dozen new principals to help him mark a fresh year of the nationally acclaimed school system.

“There is no question that MCPS has had enormous success and is a national model on numerous fronts. … But that doesn’t mean that we can stand still and admire past accomplishments,” Starr said in a memo to parents and the community.