Ange Postecoglou stood his ground as Forest fans demanded his dismissal after barely three weeks in charge
A damaging two-three European loss to Midtjylland means the manager winless in his first six games in charge of the club
He is now the first full-time manager of Nottingham Forest in a century to not secure a win in any of his initial six matches
After the opposition player scored the away team's last-minute final goal at the home stadium, numerous Forest supporters chanted "You're getting sacked in the morning" towards the former Tottenham manager
"Supporters are upset. They are entitled to have an opinion on it. I listened to their opinion," said a downcast manager, who was also jeered as he walked down the tunnel at full-time
"Nothing shocks me in soccer. It's the climate we're in. It seems that's the way things are heading. It's something I can control"
It was just over four months prior when Postecoglou was raising this trophy with Tottenham, but he was let go over two weeks after, paying the price for a dire domestic campaign. Now he is struggling to achieve victories straight away at a new team
The first European match at the City Ground for 29 years resulted in deep disappointment, and the accusations was pointed at Postecoglou prior to the game's end had sounded
Adding insult to injury, fans then sung in admiration of the former manager Nuno Espirito Santo, who is currently at West Ham
Nuno led Nottingham Forest to a top-half finish in the Premier League last season before being dismissed as his relationship with club owner the chairman deteriorated
Defeat to Midtjylland followed Saturday's one-nil home loss to Sunderland in the Premier League
These results have changed the atmosphere at Forest, with fans also starting to doubt Marinakis
"My responsibility is to make sure we secure victories for this football club and progress it," remarked the head coach
"I would prefer if supporters were positive in their view of what I am attempting. I can only alter that by winning games of soccer
"Irrespective, that's not going to affect the way I am handling matters on. I strongly feel in the approach of what we're doing and I do not believe we're distant from being the team that can eradicate the situation we're in at the moment and get the results"
Forest invested approximately £180m in the off-season, aiming to capitalize on last season's success, but Nuno was sacked recently after his rapport with the owner deteriorated
Postecoglou replaced him on the ninth of September, but the team have failed to sustain last season's momentum and found it tough against their opponents from the Danish Superliga
The Australian head coach believes his squad remain close to a turnaround
"Absolutely, little I saw this evening alters any of that," he said. "I get the mood around the place won't be great, and I understand people's attitude at the moment, especially towards me, but it's not unfamiliar territory for me
"I believe we are on the correct path and when we get through this phase of uncertainty we are in, we will be on a positive trajectory"
Chris Wood's stoppage-time spot-kick could not save the team who earlier let in first-half scores from Ousmane Diao and Mads Bech, around Dan Ndoye's leveler
The side tied two-all at Real Betis last week and travel to Newcastle in the Premier League on the weekend before the pause for national teams
Postecoglou said: "It's a disappointing result from us. It was an significant night for several factors and [a] similar tale, us letting ourselves down in key moments and facing an uphill battle
"If you allow the opportunity to find the net every time they get near your net, it's going to be hard to win games of soccer"
Is the manager be allowed patience?
It is known that the owner is willing to make quick changes if he believes matters are not working
At his other club, he dismissed ex-Huddersfield manager Carlos Corberan after just less than two months as head coach, while Nuno's departure came weeks after he agreed to a new three-year contract
Currently the focus falls on Postecoglou
"I believe he will get more patience because he was hired by the owner," ex-player and West Ham striker a pundit said on TNT Sports
"The owner will allow him extra time to implement his ideas going, because right now it seems he finds it challenging to get his tactics over to the squad"
Ex-player and Foxes boss another expert noted: "Victories are the key objective - it is as straightforward as that
"The fans were already opposed to him in several ways, but we are six games in, you'd hardly know the identity of the staff after that period of duration"
On the boos, he continued: "One must handle with all the noise around you. You must not let it control all aspects, but you cannot ignore it"