Couldn't disagree more. I think every squad benefits from having 2-3 players that have versatility and the ability to plug gaps. In the past we've had the likes of O'Shea, Park and Rooney to some extent who could play multiple positions and offer us depth and tactical flexibility.
For me Lewis-Skelly would be a great signing at the right price (£30-40m max) and would provide us with good cover and a nice selection of options at LB alongside Shaw and Dorgu. With Shaw in his last year, we can basically use this season to hopefully nail down Dorgu's future position (which I personally will be at LB if he is to make it here), then see is either Leon or Amass are up for it.
Given our dire lack of depth at CM going into next season, we genuinely do need to add 3 players here. I struggle to see us doing this unless we find a 3rd signing on a free or very cheap like a Norgaard. Alongside LB, Lewis-Skelly offers us an additional CM option too, leaving us room to potentially go big on two CM signings (eg. 2 of Anderson, Wharton, Guimaraes, Fernandes) as well as a LW.