Arsenal chief executive Ivan Gazidis insists the Gunners will qualify for the Champions League this season providing the club stays united.
But Gazidis has urged fans to get fully behind the Frenchman and his players.
"If that can happen until the end of the season I know we can qualify for the Champions League," he said.
"[Then] we can rebuild and regroup in the summer and come back strong.
"Victory through harmony. The strength of this club has always been its unity and our fans and our players need to come together in this fight."
Arsenal have competed in European football's biggest club competition in each of the past 14 seasons and have benefited from the rich financial rewards which accompany qualification.
But Wenger's team face a fight to finish in the Premier League top four again after making a slow start to the campaign and suffering three straight defeats last month.
They are now fourth in the league table and have been given renewed hope by Sunday's morale-boosting 5-2 home win over north London rivals Tottenham.
Arsenal, who reported a huge rise in profits to £49.5m on Monday, are ahead of fifth-placed Chelsea courtesy of a superior goals scored tally.
"We hear the noise, we understand the concern of the fans, we know that there are issues, we know we're not where we want to be," Gazidis told Arsenal's official website.
"But I can tell you that this team, our manager, and the players are absolutely united in what we have to do for the rest of the season, which is to finish in the top four. It's very much in our hands."