We'll see how long allowing clubs to have both ECNL + MLS Next lasts. The leagues compete for top level players/teams.
- ECNL has the ability to allow clubs to play against their girls teams IF they play their boys in ECNL leagues.
- MLS Next has hooks into professional soccer careers (for boys)
Both are just marketing tactics to appeal to players, parents, coaches, clubs dreams and asperations.
Imagine if you were a club with decent boys and girls + looking to join a top level league. The quickest way to get there is to put your boys in MLS Next + be successful + put your girls into GA + be successful. If MLS Next doesn't work out you can always do ECNL. Also, switching from MLS Next to ECNL on the boys side can be leveraged into getting your girls into ECNL.
What's interesting is that many top girls ECNL clubs also do boys ECNL. If MLS Next is considered the top level league for boys how are they going to bridge keeping the girls in ECNL + getting the boys into MLS Next?