Do we really need to rush this window?
Currently as most of have said we need 5 positions: RW, AM (Backup), LB (Backup), CB
Getting Sancho and Grealish won't make us title contenders but will definitely make us a top 4 team and will be quality signings in 2/5 positions. It will cost us around £170m which will be paid out from our budget and sales of some deadwood (Dalot, Andreas,Lingard, Mata, Rojo, Smalling).
After the above I doubt we have any major funds left which means we will be looking at cheap alternatives to fill out the 3 positions and I would prefer we rather play the kids than take a £20-£25m punt. Unless we sell Fred/Scott and sign a quality DM or Sell De Gea and invest in a CB/LB.
Next season we can assess the progress of Scott/Fred in DM, Tuanzebe/Mengi progress in CB and Laird as fullback. We probably wont be making any big signings next season and can work to improve these positions with better quality signings.
Squad for the season
GK - De Gea, Romero, Grant
LB - Shaw, Williams
RB - AWB, TFM, Laird
CB - Magure, Lindelof, Tuanzebe, Bailly, Mengi
DM - Matic, Scott
CM - Grealish, Fred, Bruno, Pogba
RW - Sancho, Greenwood
ST - Ighalo, Martial
Lw - Rashford, Sancho*, James/Lingard