Manager Micky Adams has blamed Port Vale's recent slump in form on a lack of confidence within his squad.
Adams' 100th game in charge of Vale ended in a , their third loss in four League Two matches.
The 49-year-old told BBC Radio Stoke: "Quite clearly there's a lack of confidence in certain individuals. At times our passing wasn't crisp enough.
"Forget the systems or the pattern of play, it's about individual errors and at the moment they're costing us."
Vale have now dropped to 10th in the table, four points away from the play-off places.
Meanwhile, Adams has stepped down from his position as a director at Vale Park.
He announced his candidacy to become a director in June as Vale did not have a fully-functioning board at the time, which prevented Adams from making any new signings.
However, with the addition of new chairman Peter Miller and chief executive Perry Deakin to the board, Adams has decided to relinquish his position as a director and concentrate solely on football matters.
Vice-chairman Mike Lloyd said: "Micky said from the start that he was only coming onto the board so he could move players in and move players out.
"At every board meeting, he's said he wanted to step down as soon as possible because he's wanted to concentrate on football."