I was having issues with this trophy so here is what I did to make it a little easier...
First pick a stacked team like Team Canada or an All-Star team, and play against a weak team. Team Japan is who I went with. Generally your team will control the play and you may only have to make a couple saves but if you are terrible at goalie like I am you may need an advantage.
If you adjust the CPU sliders for shot power all the way down, the shots you face will essentially just be sliding on the ice. Keep in mind that this will also affect your shooters so you may want to leave it up a bit so your team can still score. With weak shot power you should have plenty of time to move and get yourself in position.