There's a prevailing argument that FDJ as a single pivot wouldn't work because he isn't Busi in some regards enough for it to work.
But to be fair do we really need a exact 1:1 Busi replacement? in that lone Pivot role. Honestly, I would be happy with someone like FDJ there. Someone who is not only good on the ball but also very athletic on and off the ball and I have no doubt if FDJ did get a run in that role he would improve dramatically there.
I'm one of those guys now that this team doesn't need exact clones of certain players, but ones who are still really gifted enough to replace the likes of Alves, Iniesta,Xavi, Messi, Busi etc and are willing to work hard to do so. Mascherano despite the growing pains from transitioning from DM to CB, did a really good job filling the gap Puyol left behind for the years he's been here.
I agree that we don't need to replace players with exact copy of them. Iniesta wasn't same type as Deco when he replaced him in midfield, Raki wasn't same type as Xavi and Busquets was totally different than Yaya who himself was different than Edmilson.
But we also need to be open about positions, if we clearly identify FDJ as the player to build midfield around and he is sort of 2nd DM in 4231 for example, I would go for it.
I think he is more of DM, but can't say I am 100% sure about it tbh.
A Vidal-esque player. Arthur can coexist with De Jong. You need 2/3 players in midfield to be very good technically with passing. Our problems is with movement in attack not in midfield. If you have very low movement in attack and static, old players, it's impossible for the midfield to work well, because there are very few options in build-up. It's one of the staples of efficient possession football. To have proper ball circulation in midfield you need attackers who move off the ball.
I said it early in the season that if we swapped our attack with Liverpool's we will ve immediately the best team on the planet.
But we don't have that attack, so we can discuss based on 2 scenarios:
1-Replacing our attack or at least 2 of them with players who run and defend.
2-Assuming we have that type of attack for another couple of years.
In regards to 1st scenario, I can see Arthur and FDJ coexisting together, I am still not sure about Arthur and I think he will have a Yaya type of future here. He will start until someone younger come and replace him. May be if Moriba was an early bloomer he will do the trick or may be someone else we will find. But midfield will need a more creative player. Arthur wasn't a creative passer in Brazil either tbh, even his highlights at Gremio was underwhelming when it came to his passing and vision and we will need someone like Thiago to play the creative role.
In 2nd scenario we have a problem. The truth is midfielders are asked to be baby sitters for our attack off the ball.
Rakitic Barca career was destroyed by that set up. IMO he was one of the most underrated Barca players because Messi moved to central and he became scapgoat of our problems. Thing is when FDJ played as CM for either EV or Setien he became 2nd coming of Rakitic and not the player everyone is hoping.
We will need in that case all 3 midfielders to be athletic and can run their ass off, like FDJ and 2 young Vidal type of midfielders. In this case I don't see Arthur fitting that much.
But 2 important thinks to take note of:
-You are making a strong point regarding we need to stop trying to replace playyers who aren't priorities.
-At same time, board see things we don't see -despite being stupid- and as someone mentioned if they thing his injuries will halt him or that he isn't discipline enough then it is better to sell him early before we have another Dembele/Umtiti type of situation