Like I said, Girls DA is in it's introduction stage. It would be wise to partner with an established college showcase, but it's NOT their showcase by including a Girls DA bracket. BTW, CASL is/was a ECNL club (not sure they are still ECNL or Girls DA only now).
ECNL didn't piggyback on another college showcase. They hold their own events and Girls DA will have to do the same.
I was under the impression that the ECNL showcase in NJ is partnered with PDA. And the PDA showcase existed long before ECNL, no?