Pat Rayment is demanding more from Spalding United during a vital period for their promotion prospects.
The Tulips head to leaders Newcastle Town on Saturday full of confidence after a run of 15 unbeaten games in the Evo-Stik League First Division South.
But Rayment has called on several players to regain top form over the next few weeks.
The Spalding manager said: “We play all three teams who are above us in the next four games.
“If we beat them we are still in the title race. If we don’t beat them we will be back among the play-off places.
“There is no way I will be setting up my team to do anything other than win.
“I know nobody will fancy coming to play us and the state of the pitch must give us an advantage because we are used to playing on it and winning.
“But we have got four or five players who are nowhere near their best at the moment. So it’s the right time to step up to the plate now.
“They are not playing too badly but we know the ability of how they can perform.
“We want to keep winning and I’ve got confidence in our players.
“But over the next four or five games it won’t be enough to play like we have done.”
Rayment also has concerns over the fitness of three key players following Tuesday’s 1-0 defeat at Stamford in the Lincolnshire Senior Trophy quarter-final.
Jordan Nuttell, Jordan Hempenstall and Mitch Griffiths all went off injured and are rated 50-50 for this weekend’s game.
Rayment added: “We’ve got into such a great habit of winning that it’s disappointing to lose. We had chances and we should have been out of sight by half-time.”