I play on AllStar difficulty, and you pretty much have to play above Superstar to move up the lines. I made it to the 1st line, but you have to score a goal in every single game to get the 85-form score to move up to the 1st line. I'm 26 games in and I have 28 goals and 18 assists for 46 points and a +22 and leading the league in points and goals but have to maintain a 90-form score to stay on the top line. It's a grind that's for sure.
Hint: I'm a right-handed LW or Center sniper and the Goalies have a tough time with the forehand backhand deke or the backhand forehand deke, they do make some miraculous saves though but 7 or 8 times out of 10 that ends up in a goal, also seems the AI picks off your passes more this year I get most of my assists off of rebounds. I like breaking on the right wing as a right-handed shot flying past the defense and faking forehand and shooting back hand, can't believe how many posts I hit as well. It's a fun game but you have to be a pretty good player to move up the lines the new be a pro isn't for new players that's for sure.