McDavid was very clearly hurt early in the year and seems to be very much back. 19 points in his last 7 games.
The goaltending and team defending is massively improved under Knoblauch/Coffey as well (7-3 under him).
They have outscored teams 27-8 on their current 5 game win streak and are back to a positive goal differential. Wins against Vegas, Carolina, Winnipeg, Washington and Anaheim.
Still a long ways to go but they look much more like the team people predicted to be a SC contender as of late.