Unless JM decides RS will be our lb in the future, we may very well be in the market for another one to back up Davies. Potentially even to turn Davies into a backup. Chorus is still out on RS and if he has the defensive chops to play LB.
There will be some selling in the midfield area. I see one or even two of sissoko, dier, and wanyama being moved on. We'll add one to replace one or two of them. Leaves us with:
Lo Celso, Ndombele, Winks, Gedson, Dele, new signing, and 1 or 2 of the three mentioned above. More than plenty. That's why I honestly see two being sold of the three and one brought in who's more of a pure destroyer. Unless mourinho sees sissoko as more of a defensive right midfielder, in which case we'll see. As it stands, numbers wise we are set in midfield, and need to sell and buy to find one more in the mold we need (destroyer).
RB is obvious, hopefully we do buy.
Back up striker.
A left center back. Which is why I potentially see DS being sold off and a LCB being bought. Vert is pretty much gone and on his last legs, and he's the only left footed CB we have (not sure of foyth, but he doesn't seem ready anyway).
It'll be interesting to see what happens, but the rebuild is far from over.