Working premises, as of today:
1. Van Gaal should go. 39 goals in 32 games, 7 in 6 CL matches speak for themselves. It's great that he likes young players, but Van Gaal is 64 and clearly flawed and if we keep building slowly and have a fine team by 2019 he'll have fallen out with half the players he's developed and Martial, Shaw and De Gea will have forced moves to get CL football.
2. We have generally looked best with Herrera and a partner going box to box.
3. Martial at LW makes the most sense, as he's scoring a lot of goals for a wide player and that's basically something you need to have a great attack. It can be done without wide goalscoring (Bayern do it when Costa and Coman are the wingers, Citeh have done it in the past) but it's really damn hard.
4. Shaw, Smalling, Herrera and De Gea pick themselves. Fosu-Mensah and Rashford have shown a lot too, but are too young to not have strong competition/backup. Blind is a good player, Schweinsteiger is a great pro who has won damn near everything and Memphis, Darmian and Schneiderlin just got here and are not old and get actual playing time for Netherlands, Italy and France so probably deserve a 2nd season unless we're sure they won't fit in here and a great offer comes in.
5. Time will continue in a linear manner, so young > old
6. Continuity is better than change, all things being equal. And transfers are hard to do, so we likely aren't selling 10 players and signing 8 new ones. So for now, let's leave guys like Fellaini and Jones who are not good enough in
7. We only need one of Valencia and Young to cover wide positions. I have no preference, or if I do it changes weekly. Let's say Valencia stays for today.
So, that sets up like this for the summer and '16-'17:
-----------ST------- (Rashford, Wilson/Keane)
Martial-----------RW (Memphis, Pereira/Januzaj, Valencia)
----Herrera--CM---- (Lingard, Fellaini)
-----Schneiderlin--- (Schweinsteiger, Blind)
Shaw------------TFM (Rojo, Darmian, CBJ, Varela)
----LCB--Smalling--- (Blind, Jones)
--------De Gea------- (Romero)
with Rooney, Mata, Young being sold to generate funds and clear wages.
Then, if possible, I'd sell Fellaini and Jones to cash-rich Prem teams and get more technically skilled replacements.
But for now, if we get the right 4 players in, that looks solid enough. Every other young player not still needing U-21 time gets a loan. One of Pereira/Januzaj and Wilson/Keane gets a loan until January or May and the other stays and makes the squad.
I know our board isn't brilliant but that seems doable, right?
Manager - Mourinho is fine, but I wanted Pochettino in 2014 and I still think he's the right guy. Spurs' peripheral numbers are even better than Leicester and he's great with young talent. Blow him away with a ludicrous amount of cash.
ST - Can be older since Rashford and Wilson have potential and if Memphis comes good, Martial will go back up top. So, most important thing here is an immediate goalscorer. Ibra is a dick but he is one of those. Don't think he wants to miss out on a chance at his first CL, though. So if we miss out on that, I'm not sure where we should look. We really should have just kept Chicharito, despite his awful link up play. As much as we need a guy here, I have this 3rd or 4th in priority behind manager and the next two positions.
RW - Dembele looks incredible and has the numbers to back it up. 12 goals in 17 starts and 4 subs in Ligue 1, from the wing, is incredible for a 28 year old, never mind an 18 year old. We can offer him playing time and he's too young to have CL football next year as a dealbreaker. Seems like along with Pochettino, this is where we should overpay, even if it means skimping elsewhere. Mahrez we know is a fine dribbler and gives Prem fullbacks trouble. Might not want to give up CL football, but generally you'd think we can get it done. Leroy Sane looks a solid option too. I think City, if they edge us for 4th, with Pep, will have have first choice at this position. Arsenal should sign really sign one too. This is the position I think we have the least hope in, so should be the one we are happy to spend most in.
CM - This is a close 2nd, though. Our best XI last year was with Fellaini and Herrera going box to box. Even Lingard has done well centrally. A box to box player with some technical skills would be great. Saul has really improved on the ball and works his ass off (I guess all Simeone players do), but I doubt he will leave. Gabi can't go on forever and Saul has a contract until 2020 so Atletico can wait until 2018 to sell him off anyways. Kante would also be a nice option. Can't hurt to have the hardest working man in football around the youngsters, even though I'm not sure about his offensive game. A prime Vidal or Ballack type would be ideal, stylistically, if we think there's a new one out there.
LCB - Smalling needs a partner. In theory it could wait a year, but if we don't have as much possession next year, Blind might struggle. Besides, his versatility is part of what makes him useful and it's nice to know we'll have a pairing that works even if the LCB is out.