Kelly Smith has urged Arsene Wenger to end the "tension" at Arsenal and make an announcement on his future.
Former England forward Smith, who coaches Arsenal Ladies' development squad, admits her opinion of the Frenchman has diminished over the past few weeks.
The Gunners have lost four of their last five Premier League games and been knocked out of the Champions League after a 10-2 aggregate defeat against Bayern Munich.
Arsenal boss Wenger has yet to announce whether he will sign a new deal at the club as his current contract expires at the end of the season.
And Smith - who had three stints with Arsenal Ladies, winning five FA Cups - believes the uncertainty is "not helping" the club.
"My mind on Wenger has been turned a bit," Smith told BBC Radio 5 Live.
"I was always on the side of supporting him, but seeing the performances the last two or three weeks, with the lack of effort, the disorganisation, it seems to be the players have really lost the passion to play and get up for games.
"I think by him keeping quiet, it's obviously not helping the whole situation.
"It's quite hard being around the training ground because the tension is running very, very high just with the pure fact no-one knows whether Wenger is going or staying."
Sixth-placed Arsenal host Manchester City on Sunday with a six-point deficit to make up on the top four.
Smith has not been impressed by the recent run of form and the 38-year-old called for Wenger to act.
"I think he needs to make a decision just for the pure love of the club," she added.
"No manager is bigger than the club and I think Arsene Wenger is running the club at the minute. There's nobody above him making the decisions."