The LadyVols situation is the same situation UCLA had from 1976-1995 after John Wooden retired
Yes, both are exactly the same in that both Wooden and Summitt were irreplaceable, once-in-a-lifetime icons of their respective sports, and it was always bound to be next to impossible for anyone to replace those legends.
Where they differ is that Gene Bartow, who immediately followed Wooden, actually led UCLA to the Final Four, and the Bruins were in good shape when he left to coach elsewhere. Bartow had been a successful HEAD COACH before he followed Wooden. And then Gary Cunningham did just about as well as Bartow did when he took over.
Holly, on the other hand, had never even wanted to be a head coach. Sure, I think she went on a couple of interviews over the years, but I think she knew herself that she wasn’t head coach material.
So, in that respect, I feel like Tennessee is FAR worse off than UCLA was. At least UCLA had a proven head coach immediately following their legend.