There are 4 big gaps in our first team at the moment (in no particular order):
- Centre back (lack of an athletic defender beyond Bailly; not much trust in Tuanzebe at the moment)
- Defensive midfield (Matic + Pogba replacements)
- Right wing (i.e. Sancho)
- Striker
The only other gap that exists is the lack of depth at right back, but that's not a major gap.
Given the impact that COVID has had on our finances, we won't be able to address every possible position. Even before the pandemic, we weren't necessarily addressing every weak point at once. The club have chosen to prioritise the centre back and striker positions for this summer and will look to upgrade the rest in the future (or if additional money is made available via sales).
The centre back priority is obvious. The striker one only makes sense to me if Cavani won't be staying (likelier given the delay in exercising the option). Otherwise, I don't see why we'd get another striker unless we won't be viewing Martial as one (unlikely). The Sancho situation makes sense (Dortmund have basically declared him for sale, ceding their position of power to the buying clubs). Regarding the midfield situation:
Luckhurst has stated a few days ago that United would only go after a new midfielder if they sell Pogba. Besides that, the lack of talk about a new midfielder from the rest of the reliable journalists makes me think that we may not be prioritising a midfielder this summer as much as a centre back or striker (more reports on both of those positions). Even foreign media outlets haven't linked us with new midfielders.
The only way we'd get linked with new midfielders is if we commit to selling Pogba this summer. Until that's the case, I don't see us really going after a new midfielder unless we get a sudden cash injection from elsewhere.