Brad Marchand making early Hart Trophy case and other Bruins-Devils takeaways

The Boston Bruins struggled with execution in their initial moments of Saturday’s matinee against the New Jersey Devils. But they eventually cured their hiccups behind one of their more well-rounded efforts away from TD Garden.

Some of the rough habits arrived early. Another Brandon Carlo turnover in the defensive end and Jeremy Swayman’s brain fart playing the puck outside the trapezoid nearly put the Bruins in another hole.

Eventually, Brad Marchand and company settled down.

Boston’s top-line left winger extended his point streak to six games with his pair of second-period tallies. Captain Patrice Bergeron provided separation with his third-period marker, sparked by a brilliant rush by David…