Bury manager David Flitcroft insisted his tactics had worked perfectly after his side beat AFC Wimbledon 1-0 courtesy of Danny Mayor's stoppage-time strike.
Mayor earned the three points at the death after team-mate Jean-Louis Akpa-Akpro had already hit the crossbar as the Shakers further eased their relegation worries.
AFC Wimbledon had spurned plenty of chances to take the lead with Danny Hylton the chief offender as he failed to find a way past Brian Jensen.
But after using all three of his substitutes to try and turn the game in Bury's favour, manager Flitcroft claimed his changes had given the Shakers the edge.
"I said to the players before that game and I keep saying to them that the way I operate is to use 14 players to win a football match," he said.
"I thought the subs that came on, such as Jean-Louis Akpa Akpro, stretched them with their pace, which forced them to drop and gave us space.
"They became disorganised when Jean-Louis came on and I think Clive Platt won every ball that went into him.
"Chris Sedgwick sat with a calm and cool head and dominated the centre of the pitch. Yes, we had three or four chances late on but you work for that during the 82 minutes that you have to graft.
"I thought the defence was incredible, really stuck to its task, and it's another clean sheet so I'm delighted.
"I think before that we just cancelled each other out. I think the shapes cancelled each other out."
Bury are now unbeaten in five games and sit seven points clear of the drop zone, while it was a fourth consecutive defeat for AFC Wimbledon.
And while Flitcroft hailed his own tactical switch, Dons manager Neal Ardley refused to criticise his plans, instead blaming a lack of quality.
"I don't think there's anything tactically that we're doing wrong at the moment, it's individual errors and people switching off that is killing us," he said.
"It's not as if we're not creating chances it's just a lack of quality in there. As a manager all you can do is get your head down and keep working with the players, hoping it will turn.
"I'd be stunned if anyone thought that was a fair result. I felt like that was a smash-and-grab.
"Most of their shots came in the last 15 minutes when we lost our way but other than that I thought we were the better team.
"I don't know what to say to you. The performance levels of the team were good but we've lost a game of football. I can't take any consolation from it.
"I'm trying to put an attacking team together that tries to score goals. If I haven't got the personnel to do it then that's my fault in recruitment."