The Dutch tactician reportedly conducted one-on-one meetings with his entire squad ahead of Thursday night's Europa League clash with FC Midtjylland.
The Red Devils were beaten 2-1 by the Danish side last week and van Gaal wanted to discover why his team were so lacklustre in the Round of 32 first leg, prompting him to hold the intimate interviews.
But club great Scholes, who has often questioned van Gaal this season, felt it was unnecessary to handle the situation in such a manner.
"I'm not sure really," said Scholes when asked on BT Sport if that was the right way to handle things.
"It's his style and it's something he obviously wants to do. Maybe he wants to get something off his chest, maybe it's a chance for the player himself to get something off his chest.
"It's his style, he may think he can get more out of the player doing it that way. I'm not too sure I think it's maybe something for when you're 16 or 17 that happens and whether when you are in the first team I'm not too sure."
When asked if he had similar meetings with Sir Alex Ferguson during his career, Scholes said: "Yes I did when I was 16 and 17 we regularly had meetings with the youth team coach to see how you are doing and how you are progressing but not with Sir Alex, not unless you were in trouble."
It obviously worked a treat, however, as United came from behind to power past Midtjylland 5-1 in the return bout to win the two-legged 6-3 on aggregate and progress to the Round of 16.