I hope I'm wrong but I have a worrying feeling we're focusing too much of our time on the Sancho deal and we're either going to miss out on other targets and run out of time to get more bodies in. It would be great to land Sancho but there doesn't seem to be a lot of other transfer talk around us regarding other players at the moment, and Sancho won't fix all our issues.
I don't think the point of Sancho is to fix everything in 1 window.
Think of it this way
2020 summer: Sancho
2021 summer: CB, midfielder
Alternate reality 2020 summer: cb, winger depth
Alternate reality 2021 summer: midfielder, defender
Conclusion from the above 2 scenarios: Better team for 2020/21 season, but not good enough to win titles.
The 2nd scenario doesn't guarantee your team for the 2021/22+ season(s) is better than the 1st scenario's 2021/22 team. So although filling in more holes for the 2020/21 season looks like it could create a better team, it's only thinking about the immediate future (2020 season). United think that getting Sancho now, gives us a stronger team over the short(2021/22) and long (2022-2026) term because they really believe Sancho is the type of talent you acquire at all cost.
None of the CB talents have proven themselves at the same level of say de Ligt, or the CB equivalent of Sancho.