MANSFIELD — Trevor Jones and Finn Carley both start on defense for Duxbury, Jones as a defensive back, and Carley as a linebacker. Were it just for those contributions, Jones and Carley would be enough for the Dragons. But as it is now, each player also plays quarterback, and Duxbury coach Matt Landolfi rotates them. In Thursday's game at Mansfield, both players made a positive impact in Duxbury's 21-17 win....