If we add Richarlison, Mina, and Digne, and keep Lookman, we would look decent with Silva’s front-foot, energetic style.
With that in mind, these would be my line-ups/squad: (yep, I would start Besic, and dispite my slandering of him, I feel Schneiderlin could keep everything ticking over nicely once the whole squad is up to speed and on the same page, plus I think Silva really likes him; I also think he prefers Keane, but I would prefer Jagielka as first choice provided we get Mina in there)
Pickford
Coleman Mina Jagielka Digne
Besic Schneiderlin Sigurdsson
Walcott Tosun Richarlison
Stekelenburg
Kenny Keane Holgate Baines
Davies Gana Vlasic
Sandro Niasse Lookman
Robinson, Baningime, Dowell, Calvert-Lewin
GK Pickford, Stekelenburg
RB Coleman, Kenny
LB Digne, Baines, Robinson
CB Mina, Jagielka, Keane, Holgate
DM Schneiderlin, Gana, Baningime
M/CM/ACM Besic, Sigurdsson, Davies, Vlasic, Dowell
FW/W/ST Walcott, Tosun, Richarlison, Sandro, Niasse, Lookman, Calvert-Lewin
I think he may go with Schneiderlin, although Besic probably has given him a headache with his recent friendly performances - box to box and creating a few decent passes ACTUALLY FORWARD. But I think having the reliability, solidity and energy of Gana as that midfield defensive linchpin is essential given our centre backs pace

That front 3 should be pretty settled all season, so will hopefully develop an understanding... So, gauging Everton players from most Evertonians perspective this would probably work better. but as I say, I get the feeling he wants to play Schniederlin as a quarterback - he is capable of it, at 100%, but how often have we seen 90%+ in the past couple of seasons?:
Pickford
Jags ---------- Mina
Coleman ------------------------------------ Digne
Gana
Besic ---------- Sig'n
Walcott ------------------------------------ Richarlison
Tosun