I have no doubt that UConn will fill their open slots. The transfer portal contains around or over 2,000 players. UConn probably probably won't get a 5 star SEC transfer, but there is more than enough talent to fill openings for a rising Independent with UConn's schedule, exposure, and Coach who know how to get them to the NFL.
Separate but related: The number of players in the portal is astounding. Unless a player really doesn't care about continuing to play football or pursue a college education, I can't see how a player enters the portal without knowing they have a landing spot. Of course that opens the door to tampering, but the process is so half-baked as it is that he NCAA reaps what they sow.