Well, I am not saying Valverde can't be useful.
No but you are making assumptions that just seem either flat out odd or rather far in future
Assumption a) - he's a CM -> he competes with Fede this season, despite us having 2(+1 in Ceballos even) for RCM, 3 for LCM in Ancelotti mind and 1(+1 if you count Blanco at Castilla) for DM.
Assumption b) - he's a CM -> he competes with Fede for years to come because he's not an 'attacking profile' like Pogba because that apparently there must be one in a 4-3-3 (which I've heard before but dont even agree with TBH)
Assumption c) - we'll play with 3 in midfield for years forward, even though we currently have terribly imbalanced wings which won't become any better even when buying another LW/LF in Mbappe
Assumption d) - even if defaulting to 4-3-3, we won't choose to play diamond 50% of the time depending on squad shape where both players can work well because... why exactly?
Assumption e) - similarly won't opt for 3ATB which was becoming trendy for years now because... why exactly?
To the formation, because that to me is most interesting.
Almost every fullback we bought/raised in last 5 years is attack-minded.
Mendy and Alaba both seem to have a knack for LCB.
Even if not opting for back-3, Alaba may become LB of choice if becomes clear he's being wasted centrally and we pay for Kounde instead.
Hazard is a waste at LW and IMO his future is not outwide as he already lost pace, but his touch can still be very useful centrally ahead of midfield.
Vinicius can easily play LF and already swaps with Benzema a lot, Rodrygo even more so and even played CF for youth NT I think.
4-3-3 is a massive predictable bore where you have orthodox expectations of LCM-RCM pairs and wingers that coaches are trying to get out of lately because it's being figured out in direct meetings that lead to CL wins and RM could be part of that trend so dont see why it's so certain this is how it has to end for Fede-Edu
And even if you're right and Edu becomes a starter in several years over Fede - how's that an L you initially wanted to attribute to me in the event of it happening
Fede ain't going to get sold unless for some injury calamity where he's next to useless. Club has long had the policy of keeping players with his mentality and very rarely do you find a guy who's as good as he is and this committed.
I mean I accept I may have several L's to take on other guys (yet to be seen). Fede ain't going to be one of them