From 2016 to 2020, 5 drafts, UConn had a total of 3 players drafted. Contrast that with the 5 drafts from 2009 to 2013 in which 16 players were drafted by the NFL. There wasn't much talent on the roster when Edsall 2.0 showed up. Yes, UConn did lose a couple of players that could be contributors, but, like it or not, Edsall was clearing up scholarship spots to bring in more recruits, the freshmen and sophomores that are now on the roster.
Just to caution everyone, there are only ~10 players that will have used up their eligibility this year which is one reason why this year's recruiting class was going to be relatively small. The new coach will probably want to bring in players so we could see some roster churn this year. This is the same issue that Edsall faced.