Schmeichel, a legendary goalkeeper himself, believes the club could have pursued more established options, such as Emi Martinez from Aston Villa or Gianluigi Donnarumma from Manchester City.
He admits that he wasn't familiar with Lammens before the signing was announced, which has raised questions about the club's decision-making process.
Schmeichel thinks Martinez would have been a better fit for Manchester United due to his experience at the highest level and his ability to provide leadership and make opponents think twice.
He notes that Martinez has consistently performed well in the basics and goes beyond that to provide a vital presence on the pitch.
Schmeichel is disappointed that a deal for Martinez fell through due to financial reasons, which he believes was a missed opportunity for the club.