It's apparent to the fans, journalists etc that the midfield is not working and hasn't really since Slade took over or when Ole was in charge.
The only one who can't see that at the moment is Slade, as he seems happy to persist with 4-4-2. I really think with the signing of Revell who offers a physical presence as well the ability to close down, 4-5-1 is the way to go with a midfield of Harris, Noone, Whitts, Gunnarson and Adeyami.