Looking at the team on a line to line basis, the first two forward lines are two of the top lines in hockey. No issues there. The third line needs sheltering but scores at a very good clip. And for the first time all year, the fourth line is cohesive--all players play well defensively and should take some pressure off of lines one and two. All in all, a potent, but balanced bunch, plus Matt Martin.
Unfortunately, the defense pairings are suspect. While the Rielly pairing has been tasked with difficult match ups all season long, they're noticeably slowing down. Fortunately, the Gardiner pairing is picking up the slack from a sluggish start of the season. The biggest issue though, is the third pairing, which hasn't had time to gel due to player substitutions, injuries, and the in-season replacement of Borgman with Dermott. While Polak's post injury mobility issues seem to be behind him, he is still by far the weakest link in this group. With that being said, he's actually having a decent stretch of late... I have reservations with Zaitsev's play and am concerned with Hainsey's expiration date.
The goalie should win the Vezina; the backup a Masterton. As is the case with every elite team in the league, these goalies make the difference at the end of the day. This confident goaltending is invaluable to this young team and its AHL call ups.
Speaking of whom, I think these call ups are what puts the team over the edge. It's not a fluke that the Marlies are so good and I believe that every non-core player* can be replaced with a Marlie with little to no ill effects. We literally have 2 NHL teams.
*Core players include Matthews, Nylander, Marner, Kadri, Rielly, Gardiner, Hainsey, and Andersen.
Our playoffs will live or die by the health of Hainsey and Andersen. Having such a bind spot, in my opinion, takes this team away from a contender status. We can still make a run with Andersen and the forwards, but that can be said about many teams.