Signing Mount means we might see a different system next season because ETH and the scouting team couldn’t find the right player that fits FDJ profile. Instead of playing with 4231 double pivot, ETH might play 433 with one no 6 and two no 8. We see this changing formation in his Ajax team when FDJ left.
The following below is when Ajax had the possession and start their build up play vs Dortmund in 2021/2022 season. You can see that Gravenberch is nowhere near in Ajax build up play phase to progress the ball. It‘s the keeper, two CB, a DM, and the two full backs the ones who got involved in this and if ETH uses this same system then we will rely on those 6 positions to retain possession or recycle the ball. Among these 6 players, Alvarez is the one being assigned to play more simple passes and doesn’t get involved on the ball often (see below stats), this suitable to Casemiro who is not a press resistance so I think we will see a different role in Casemiro next season in comparison to this season.
I think our build up and attacking transition will be something like this:
GK
Varane Martinez
Casemiro
RB —————— Shaw
Antony - Mount - Bruno - Rashford
ST
Bruno and Mount will play in Berghuis and Gravenberch role. Our full backs will cover the half space and sometime swap position with the wingers. So this is where I see Mount might be perfect to play in this set up and system because we will get to utilise his strength to do high press, scoring goals and assists.
I took pictures of these FBref end of last season so this is based on 21/22 season.