Maroon began his career in 2007 when he was drafted by the Philadelphia Flyers, in the sixth round 161st overall. He has stopped in seven NHL organizations which included the Anaheim Ducks, Edmonton Oilers, New Jersey Devils, St Louis Blues, Tampa Bay Lightning, Minnesota Wild and the Boston Bruins.
The Bruins felt that Maroon was a great spark for the dressing room and on the ice as he has many years of experience especially in the playoffs and defended his teammates. Unfortunately, that offensive success did not transpire as through 13 games of play he had only two assists and was a - 2.