To me it sounds like using ths Slammers vs Slammers Koge example players need to be registered to one program or the other. If you're registered to Koge can play on their ECNL ECRL and E64 teams.
Here's where it gets a little murky + would likely get a review from ECNL leadership. Technically Slammers and Slammers Koge could move players between teams mid-season. But there would be an entire paperwork + DOC approval process. This would be like moving a player from Surf to Blues mid-season.
So technically moving players between to two Slammers entities could occur. However in reality it's not something you could do more than once per season.
Yup.
As to why teams choose to roster a limited number of players? Probably just to create exclusivity to annoy parents on lower teams to keep them engaged.
I'd argue going smaller roster probably lessens coach headaches and is better for player development. Bubble players get defaulted to the RL roster where they can actually play meaningful minutes instead of collecting splinters.






