For example I have Heatley on my team, but at no point will he be added to my core to replace someone else.
The core are always players who you name at the start of the game, and are original Hawks.
As I said in the other thread...forget which one....after the first season the A,B,C, only matters for the number of games you have to make your player play. The core can be any 7 of your original 10 in year 2.
Does that help?

You can add 2 UFA's per season to your roster but not to the core group.
Oops--Yes a core would be a homegrown, from year 3 on the previous season's homegrown must be part of your core.