The Celtics reportedly grew frustrated with Jaylen Brown’s decision-making during their first-round playoff collapse against the Philadelphia 76ers, according to The Athletic.

League sources said Boston believed Brown strayed from the team’s game plan too frequently as the Celtics squandered a 3-1 series lead.

“Contributing to concerns about the situation, the Celtics believed that Brown went off script too often during playoff games as Boston blew a 3-1 first-round lead to Philadelphia, according to a league source.”

The numbers also reflected Boston’s struggles when Brown was on the floor during the closing stretch of the series.

“Over the final three games of that series, the Celtics were outscored by 57 points with Brown on the court.”