Very simple guys we can get two acheivements in one go (50gp):
First, go on as an AHL team (if you got this one already go on as an elite team)
Second, get a second controller and put it as a regular NHL team.
Third, put it on superstar mode and then simply play until the end of the period take the second controller and pull the goalie.
When the game finishes you'll get the achievement.