I was thinking that about Blind, because bar injuries and suspensions I don't think he'll get much time in midfield. But even if this is an exercise to see how well they do in different positions, that still doesn't explain the formation he chose in every game.
As for Young, even after the season he had, him being dropped would still make sense. Depay wide left instead of Young, Rooney and Mata as a front 3. It's almost like the start of last season when he felt the need to fit everyone in at the same time (Rooney, Falcao, Di Maria, RVP) and we suffered because of it.