Nigel Clough felt Saturday's 1-1 draw with promotion chasing Leyton Orient was a game of two halves.
Dean Cox cleverly put the O's in front late in the first-half, only for the Blades to produce a much improved display after the break, which culminated in Jamie Murphy equalising to net United a deserved share of the spoils.
Reflecting on a second consecutive stalemate at Bramall Lane, Clough remarked: "The performance in the first-half was frustrating to say the least, in the second-half we played with more urgency and you can see the difference in the game.
"We were slow and laboured in the first-half and the best we could have hoped for was getting in at 0-0, but from our point of view we have conceded a sloppy goal.
"We changed the focus a bit when we put Jamie Murphy down the middle and it was good ball by Ben Davies that created the goal.
"It was a great finish too, it can be difficult when you are clean through with so much time, but Jamie looked assured and in complete control."
On Murphy and the health of the United squad, the Gaffer concluded: "Jamie deserves so much credit in recent weeks, he offers us something totally different and he is a real threat with his pace when he plays as a striker.
"He certainly puts defenders on the back foot and I don't think they relish facing him, especially in the latter stages of the game.
"We lost Jose Baxter to a twisted ankle in training on Friday, whilst Billy Paynter got a whack on the neck against Brentford. We wanted to get some minutes into Stefan Scougall, who has had a tight hamstring, whilst it was nice to give Bob Harris 15 minutes at the end."