The van Gaal era is now well underway, with the Dutchman arriving in July to replace David Moyes having led the Netherlands to the semi-finals of the World Cup. The club have already snapped up Southampton left back Luke Shaw and Athletic Bilbao midfielder Ander Herrera, and many had expected plenty more signings before the transfer deadline.
However, the Red Devils are currently enjoying a successful pre-season. Wins over LA Galaxy, Roma and Inter Milan have spirits high around the club, and with the current crop of players taking to van Gaal's 3-4-1-2 system well, the 62-year-old says he may not make any more signings this month.
"We still have a month to go (before the transfer window shuts) and we are winning. Maybe we don't need other players," van Gaal told press ahead of United's game against Real Madrid. "First I want to see the players who I have and give them an honest chance."
It's admirable that van Gaal is willing to give fringe players a chance to impress, but it's important to note that United are just months removed from a seventh place finish in the Premier League, with many players proving themselves to be short of the standard required to play for Manchester United.
In order to get the club back in the title race - which van Gaal aims to do in his first season - United still need more quality. The club's wingers have flattered to deceive for far too long, whilst the same can also be said of the central midfielders, even with the arrival of Herrera.
Factor in that the club don't really have the depth at centre back to play 3-4-1-2 on a regular basis following the departures of Nemanja Vidic and Rio Ferdinand, and it would be a big mistake for van Gaal to believe that his squad is capable of a title challenge.
Pre-season performances are often vastly overrated, and United may run the risk of being disappointed once again if they don't bring in reinforcements in the coming weeks.