Why would you want to sell your best midfielder?
Ange seems to want to shake up the midfield a bit. Hojbjerg is very good for sure but compared to others he is just more expendable.
Bentancur was our best midfielder pre-injury. Can't really sell him now due to the injury. Who knows how he ends up recovering.
Bissouma came in just last summer. Struggled with fitness and Conte didn't seem to fancy him. Not really worth selling if he can regain his Brighton form.
Skipp is a similar player to Hojbjerg. Less experienced but younger and homegrown. Little reason to sell.
Pape Sarr is showed a lot of promise last season but Conte doesn't trust prospects like him. Think he has great potential and should suit Ange. Little reason to sell.
Supposedly Ndombele, Kulusevski, Gil and Devine could potentially play a midfield role in Ange's system, and will get chances in preseason.