I have a quick question about Goals For and team totals...

When I refer to the Projected Team-by-team Goals For section of the guide (towards the end), the numbers do not add up with the players' goals in the team profile. For example, Chicago is projected to get 236 GF this season but when you add up the individual players, it comes to 253 GF. I'm just curious to know where the difference comes from since injuries are already included in player projections...