We're not going to play a CM two of Di Maria + Herrera, but they're both going to be in the side when they cost over £90million between them. Di Maria playing midfield already got us a draw against Burnley, he's been bought as a winger IMO as LvG mentioned not having any world class wingers. Why buy one to play him in CM? Also why buy Blind if he was going to play Di Maria in CM?
I don't see any logic in playing, for example:
de Gea
Smalling Jones Rojo
Rafael Herrera Di Maria Shaw
Mata
Rooney Falcao
when we could play:
de Gea
Rafael Jones Rojo Shaw
Blind Herrera
Rooney Mata Di Maria
Falcao
I know that is currently dropping Januzaj and van Persie, but two strikers in the middle hasn't been working as well as we'd hoped yet anyway and there are rumours of RvP out for most of the season. Changes during games can be Rooney behind Falcao and Januzaj to the wing, or Valencia to the wing, Rooney up top in favour of Falcao with Mata behind etc.
Logically, without playing players out of position, the 352 gets in 3/6 of the players I mentioned. Playing 433 gets 4/6... LvG played 352 to get his best players into the side. Now, if we're looking at those six being the best attacking players to win us games, if we want more of them in the side, 433 seems like the way to go and what LvG prefers and now has the players for. So, my logic is not wrong there. There is a difference between getting more strikers in the side and getting more creative/attacking players in the side with the right players behind them. This formation can still get two strikers in the side anyway, if Rooney is used in the hole rather than Mata or anyone else.
I see us rarely having van Persie and Falcao up top at the same time.
Getting rid of strikers, signing a player who is going to be primarily used as a defensive midfielder, and buying a winger points towards a shift in formation, in my opinion.