Not sure I agree, maybe partly as really dont see Mount in the Eriksen role successfully anyway....but
I think with both McAlllister to a degree and certainly with Caeceido, people are under estimating his ability further forward, we witnessed this first hand playing Brighton. His technique is actually very good. He sprays the ball out wide in a similar manner to Mount, his high press is as good as Mounts, he really only lacks the dead ball danger and finishing of Mount but he has that excellent knack of anticipating an incoming challenge and making space for himself with his movement with the ball. Different players but I think Caeceido offers a similar level to Mount further forward and far more defensively which is why we should go for him.
Either way I dont see us signing two central midfielders this window only if we are moving for the likes of Andre, Varela from SOuth AMerica at cheaper rates alongside the likes of Caqueret, but we havent been linked rally to any, so with one signing it has to be a top top all round midfielder for me like Caicedo or Barella and if we offload all the midfielders we should we are probably down to CAsermeiro, Fernandesm Eriksen and a new signing for three positions....there should be opportunities still for both Mainoo AND Hannibal to get decent minutes over the season if they can seize opportunities they get....I think maybe a Mount limits it more for Hannibal and a Caeceido maybe for Mainoo, but there should still be chances and at there age and stage of development, 10games or so next season is a good opportunity for either