It does open up the opportunity for CCC to decide which players he wants to come back and which are better to let go and replace.
I would focus on McCulley, Howland, the OL (Smith/Bedford/Benson/Carpenter/Sales), Dunnam, and Moore.
Possibly a few more but there might be other options CCC likes more in the portal. No one really has much of a leg up on knowing the system anyway so not sure there is as much a priority in keeping our own this time around.