Not Marshall? I'm not up on this, so would appreciate comments from "those in the know"!
@CTisballers established the rules at 7 players and Marshall doesn't make my list and neither did Hailey Van Lith by the way.
Rationale:
No Marshall because she is too frail to play in the post full time especially if you put her next to ONO. Gusters has all the skill of Marshall and the bulk to man the post full time opposite ONO.
No Van Lith because she is duplicative of Paige. Leilani Kapinus on the other hand, if she returns to form, is the best defender in the class and would be the best perimeter defender on the UCONN roster. Think of her in the mold of Kelly Faris or Gabby Williams. She will get minutes because of her defense and she will not hurt you on offense as a backup PG, SG or SF/W.
Edwards and Bessior are international players that are being slept on IMO. Bessior has a Napheesa Collier completeness to her game. She defends, she passes well, constant motor, post moves etc. Bessior shoots it from deep a little better than Napheesa.
Edwards has all the athleticism of fellow Canadian Laeticia Amihere ( I'm not sure she can dunk) but she has a more complete offensive arsenal, constantly active, good handles for her size, in your face defender.
Lastly just from a numbers standpoint UCONN need a large 2020 class. Even with Paige the UCONN rosters will only be at 6 for the 2020-21 season.