When the full-time whistle sounded at the City Ground on Saturday, a small undertone of boos followed after Nottingham Forest lost 1-0 against Leeds United.

On social media, the reaction was less subtle, with disapproval and criticism far more abrupt, and extreme.

The reaction was more akin to a relegation, or a European giant missing out on Champions League qualification - not a narrow defeat in the first game under one of the Premier League's most accomplished managers.

In reality, the result was, to a vocal minority, a much-needed reality check as life under Oliver Glasner gets underway.

Criticism is allowed and justified. It was a sub-par performance littered with too many individual errors and missed chances, which was signified by Matz Sels' being beaten at his near post by a free-kick which gifted Leeds their winner.

But it is crucial that that criticism is constructive, and that it takes the context of the game into account. Any suggestion of writing the team, individual players, manager or season off is laughable at best.

It was one game. The squad's first in a competitive setting under Glasner, with no new signings starting. That is the context that so many seem to be missing.

Glasner's Frankfurt tenure was highlighted by their 2022 Europa League triumph, but it began with an eight-game winless run, including being knocked out of the DFB Pokal by a third-division side in his first game.

At Crystal Palace, he again endured a difficult start, with just a solitary win, at home to Burnley, in his opening six games. That tenure, of course, resulted in two major honours; the FA Cup and Conference League.

Nobody understands the need for patience more than Glasner, and those up in arms after one result need to take a page out of his book, which, by this point, is a best-seller.

It is a point that the Austrian head coach has tried to convey himself time and time again since his appointment last month.

At his unveiling, he warned that it could take "three to six months" for a new squad to adapt to his style of play, so it should come as little surprise that Forest are not the finished article after 48 days.

New signings have arrived, and others are expected, but they are even further from being up to speed, especially Ousmane Diomande, who missed most of pre-season after his World Cup involvement and prolonged transfer saga.

Yesterday, Glasner's Forest side were written off by some not only after their first game, but before any of his signings have even started a game. Remarkable.

But you do not need to take the word of some journalist for it, after all, I am no more qualified than anyone else.

Glasner, however, is paid some £250,000 per week to manage a football club, and his message after the Leeds defeat could not sum the situation up any clearer.

“There is no button to press,” Glasner insisted. “It is [about] getting confidence in what we are doing.

“We still have a lot of things to do. I could see a lot of encouraging things, but it is a process. You always have to respect the opposition, and the opposition was very physical and strong.

"It was pretty clear that I can't come with my staff and we put our hands on the [players'] shoulder, and all of a sudden we play like Real Madrid in the 70s or whatever. That was clear.

"I could see a team that worked very hard to get the win, especially in the second half. But today gives me and us great feedback on how we deal with this situation now and this defeat. It was an okay performance from both teams..

"[It was] a typical first Premier League game after a long break, and this is also now not the time to bury our heads in the sand but focus on what to improve and what we have done well."

After Tuesday's Carabao Cup clash against Leeds, Forest travel to Liverpool, host Tottenham Hotspur and then head to Villa Park.

Though the trio have had unsatisfactory results in their opening Premier League games, they make, on paper, a very challenging run of games.

Forest won at Anfield, emphatically, last season, and beat Spurs 3-0 twice, but there is a world in which Forest have zero points after four Premier League games.

Unideal as it may be, it would not be a disaster, with an easier run opening up soon after, but it is so important that the fanbase are as united as the squad and coaching staff are.

Numerous players have publicly stated their excitement for life under Glasner, with Callum Hudson-Odoi even being confident enough to declare silverware as his objective, when speaking exclusively to Roundtable.

So it begs the question: If the head coach and players are confident and optimistic, why have some fans turned so quickly?

Patience, and a little bit of trust, are what is needed. To support the team, rather than blindly criticising them at every bump in the road, because there will be more.