Three is the magic number for the Marshfield High girls lacrosse team.

Under first-year head coach Meghan Flanagan, the Rams will look to win their third consecutive Atlantic Coast League title. Marshfield shared the crown with Falmouth last season and with Sandwich in 2016.

To claim their third consecutive title, the Rams will be relying on a trio of goalies in junior Aislinn Washburn and sophomores Emily McDermott and Caroline Markley.

“We have three incredible goalies,” said Flanagan.

Flanagan is not unfamiliar to Marshfield lacrosse. Last year, she coached the school’s first freshman girls lacrosse team. She takes over for Ellen Parnell and Sue Collins, who were the Rams’ co-coaches.

Flanagan played college lacrosse at Springfield College before graduating in 2013and serving as an assistant. She coached for several club teams in New York and Connecticut. She also coaches club for Boston Laxachusetts.

“Creating a conducive environment where the athletes are able to develop on and off the field is one of the most important pieces of coaching at the high school level,” said Flanagan. “Building skill level is only a small part of developing the athlete as a whole. I encourage my athletes to communicate, be responsible and respectful, and hold themselves and their teammates accountable. It is key to teach them positive behaviors and effective personal strategies that are transferable into their everyday lives to become well rounded young adults.”

Hannah Adams and Sabrina Santaniello are senior captains. Molly Shaw is a junior captain.

“We also have a very strong group of underclassmen,” said Flanagan. “They will all be a major part of our success this season.”

Marshfield opened the season with a 14-9 loss against Hingham on Thursday. Sophomore Megan Murphy netted three goals. Adams (four ground balls, two caused turnovers) and sophomore Lexi Dahlquist (four caused turnovers) played well defensively.

“I anticipate this season to be a great building year for us, where we are learning and growing together,” said Flanagan. “We are hoping to capture another ACL title!”

Marshfield was scheduled to play at ACL foe Sandwich on Tuesday (after Mariner deadline) before hosting Nauset in a home opener on Thursday at 5 p.m. On Monday, the Rams will play Scituate in a non-league game at 4 p.m.

“Our strengths include always working together as a unit,” said Flanagan. “The girls always hold themselves and each other accountable on the field, and it creates for a great team atmosphere.”