Brian Daboll told Jaxson Dart on draft night that he was banking on him. One big concern is that Daboll, who’s supposed to be an offensive guru, hasn’t been running the most imaginative schemes. Try to just bring a little bit of swagger.”Greg Johnson covers the New York Giants and NFL for MediaNews Group. Giants GamedayThe Game: Chargers (3-0) at Giants (0-3), MetLife Stadium, Sunday, 1 p.m. Key Matchups:Giants QB Jaxson Dart vs. Chargers defense: Los Angeles plays a lot of zone with disguises, which makes this a tricky debut for Dart.