The Saddlers had lost six league games in a row before being held to a draw by National League North side Darington in the First Round of the Emirates FA Cup at the weekend and face a televised replay later this month.
Sadler, who has made thirteen first-team appearances since returning to Banks's Stadium over the summer, believes everyone in the squad has been guilty of making poor decisions over the past few weeks and have to keep on working hard to turn things around.
Speaking via the Express & Star, Mat said; "A lot of it is basic stuff. I don’t think there is anyone in that dressing room, myself included, that can lay claim to being faultless for the mistakes we’ve been making.
"I think we can look at goals we’ve conceded and say ‘you should have done that or should have done this.' We have to find a way to be more ruthless in both boxes. The goal Darlington scored, you have to defend that.
"Firstly, you have to land on the football in the middle of the pitch, there’s two or three of us around the ball but the lad wins a free-kick – that can’t happen.
"Secondly, when the cross comes in you have to defend it as a team. If one or two switch off, it results in their player attacking the ball. There is plenty to work on but we have to get back on the horse and keep working.
"I’ve been in the game long enough to know bad runs come to an end and then they go into a positive set of results. That’s what we’ve got to keep believing."
The so-called Leasing.com Trophy wouldn't usually be high on the Saddlers' list of priorities but, given their recent spell of form, represents a genuine opportunity to return to winning ways and Sadler believes the team can use the match as a springboard to future outings.
The 34-year-old continued; "Forest Green is an opportunity to win and get through the group. Then we have a replay mixed in the middle of two huge league games. We have to get ourselves up for that.
"We have to be prepared to create opportunities and stick our faces and our bodies in front of the ball to prevent it going in. There’s no masterclass of coaching that needs to be spoken about here, it’s League Two football.
"You need to block it with whatever you can block it with and put it in with whatever you can down the other end."