The biggest thing for me is the improvement of their defense, which already had Shayne Gostisbehere. He's one of five defensemen on the team who have at least 10 points. The Flyers have generated a lot of offense because of the breakouts of their defensemen.
Minuses: Although Mason arguably has been the Flyers' MVP, they are too dependent on him. It's not fair to have him make save after save and keep them in games, especially when the defense, though it has been great offensively, has been lackluster defensively.
I'd like to see a little more ice time from their fourth line with Chris VandeVelde, Pierre-Edouard Bellemare and Roman Lyubimov because they can contribute. VandeVelde has five goals and 10 points, and Bellemare and Lyubimov each has four points. Maybe once in a while coach Dave Hakstol could slide down Giroux or Voracek to play with Bellemare.
Lastly, the run that they had with 10 straight wins was great, but it doesn't guarantee them a playoff spot because the Eastern Conference is much improved this season. Even with that, the Flyers are in the second wild-card spot, tied with the Washington Capitals, who have three games in hand on them. The Carolina Hurricanes are seven points behind the Flyers for that spot but have three games in hand.