I think what Geno wants to do but is reluctant, especially against quality competition, is change the style of play to a full-court pressure, position-less lineup that relies on steals and transition to counteract the lack of inside and rebounding presence. Zone is more than a periodic different look
Last season, as in the past few years, against teams like Baylor, he stays with half court man with no press. Good teams effectively slow down UConn in transition.
Against AAC teams, he would experiment and try things like half-court traps, different zones, various types of presses. All with success but not enough, in his mind, to try the strategy in big games.
The hint of potential change is the recent recruit types. McLean, Poffenbarger, Edwards, Bueckers etc. above all else, impress with their athleticism.
The caveat, of course, one requirement of a more full-court style of play is to be willing to use more of the bench.
As has been discussed on the board for years, Geno only wants to play seven, at most, in big games.