Coombs Well sounds like that's at least some of the plan, but the logic is he can play both. Means we can be in for Mount but not need him so desperately we're at a disadvantage negotiating.
This "optionality" has served us well in tandem with "specificity" building the defence. You get your Saliba and Gabriel, but you balance with Tomiyasu and White.
If in midfield we have our Ødegaard and whoever plus Rice and backups, we'll be a bit more resilient.