Lipsey will be fine, he's been overall really good this year.
The problem is that for the second year in a row, a freshman PG is the only guy who can really do much with the ball in their hands, including get it across half court against a press.
I'd be asking that question about the other guards. Losing Williams hurts, so does the open scholly, but you just can't have SO many guys that crumble under defensive pressure with the ball in their hands. Gotta make strides there this offseason whether that's through the portal or guys taking a step up.