Danny Wilson felt Saturday's draw at Walsall was a 'fair result', but was extremely critical of the Blades performance in the first-half at the Banks's Stadium.
United trailed to Craig Westcarr's 44th minute opener, but substitute Chris Porter rescued a point just after the hour mark, much to Wilson's relief after he had administered a stern teamtalk to his players at the interval.
Speaking in the aftermath of the stalemate, the Gaffer said:
"The timing of their goal was far from ideal and that led to a few choice words at the break.
"I was very angry with the entire first-half performance, especially given our league position, but the goal compound the matter.
"In the second period we got a positive response and that was pleasing.
"After that, we took the game to Walsall, who are a good side at home and despite them having a couple of good chances I thought we deserved our equaliser.
"I think it was a fair result in the end, Walsall be much better than us in the first-half, but we improved as the game progressed and deserved a point, who knows what it could mean at the end of the season."
The Blades boss is urging his team to take the the bull by the horns in the final six matches of the season as United look to secure automatic promotion back to the Championship.
Wilson, who withdrew Dave Kitson at half-time because of illness, concluded:
"We need to be more forceful in our approach and not be timid, waiting for things to happen.
"In the run-in we have to clench our fists and go at teams from the first whistle.
"Dave (Kitson) was struggling with a migraine that he had before the game, that's why he was replaced.
"We never thought he would get through a full game with his back and hamstring, but those injuries were manageable."