Crouch said in an interview with the Daily Mail: "I was full of hope for Manchester United's transfer in the summer, but the way they negotiate in the transfer market once again confused me."
Crouch said: "Manchester United seems to buy good players, such as Van der Beek. But they don't seem to have a strategy. If you have Pogba and B Fee, why should you bring in Van der Beck?"
Although Dortmund still insists that Sancho will stay in the Bundesliga, Sancho is still considered Solskjaer's main goal.
Germany refused to give in to the England star's coveted £110 million worth. At the same time, the Red Devils were defeated by Tottenham and Tottenham brought in Reggie Ron.
Crouch added: "Why don't they bring in forwards, like Jimenez of Wolves?"
"Manchester United's defense needs to be strengthened, so why should they focus on Sancho instead of Maguire's partner?"
"Of course Sancho is top-notch. Don’t get me wrong, but how much has he improved in this position than Martial, Rashford and Greenwood? Sancho’s £100 million can be better invested in others local."
In the end, Crouch believed that Manchester United's chance of reaching the top four would not be obliterated, even though they lost to Crystal Palace.