It's a huge gamble even if you ignore the huge fee we've paid for him. We need a striker / attacker who can go straight in and make an impact. Is Martial that guy? Well he could be but we just don't know. And at 19 is he ready to be a match winner for Manchester United?
Of course a lot comes down to what mission LVG is on. Maybe the club have told him that winning trophies is secondary? The main objective for him is to repair the damage done by Moyes and leave a quality squad in place? And if that is his objective then he's definitely clearing out a lot of the garbage whilst bringing in young players with lots of potential.
I have to give credit to LVG for being so ruthless. He's gotten rid of a lot of dead wood which was needed. But I'm not sure what position he's going to leave us in overall.
I think long-term the squad is in a decent place:
---------Martial------ (Wilson)
Memphis-------
RWF (Januzaj, Pereira)
-------Herrera------- (Mata)
----
CM--Schneiderlin (Blind)
Shaw--------Darmian (Blind,
RB)
-----
LCB-Smalling--- (Jones)
---------
GK---------- (Romero
)
Is our 4-5 year depth chart, I figure.
-We will sign a GK or improbably retain De Gea, so that spot doesn't worry me.
-LCB, I think we need to just upgrade from Rojo. Jones will be happy enough as Smalling's backup, but we need another starter.
-CM, we'll need to sign someone soon enough. I could see getting 2 years (including this one) out of Schweinsteiger + Carrick then signing a passer to play next to a 27 year old Schneiderlin in the summer of 2017.
-RWF, we need to do what we did with Memphis, ideally, and sign a young, productive player who can help now and hopefully dominate later.
If just one of Januzaj or Pereira develops into a starter and Memphis and Martial develop as expected, we're basically one RW away from having a good, young attack.
So, I think squad-wise, we are in a decent place. Summer of 2016 will be about replacing De Gea (or retaining him), signing a partner for Smalling and a RW. That's not an unusually onerous summer. The attacker will be very expensive, the CB fairly so and the GK probably a bit less than that. The sort of summer Citeh just had with Sterling/De Bruyne/Otamendi/Delph but no Delph and a GK instead of one of those attackers.
But it's hard to believe we can play this brand of possession football and simultaneously get title-winning production from young attackers Martial and Memphis.
A nice thing about the squad is that the 25 year olds (Schneiderlin, Darmian and Smalling) who make up 3 of our 6 defensive positions (back 4 + DM + GK) will probably be at their peak in 2-3 years (Shaw will be 25, so no worries there either), as they are defensive types, which is when you would think Memphis, Martial and hopefully one (or 2) of Januzaj/Pereira/Wilson are starting to consistently produce. We look set to be a great team in 17-18 as long as we don't completely feck up the development of our attacking talent and find a CB and GK to develop chemistry with the 4 previously mentioned defenders.
TLDR: We should have signed Griezmann/Reus and Laporte/Gimenez, but there's always next summer.