Chris Wilder felt a much-improved second-half showing was crucial, as United began 2019 with a victory at Wigan.
David McGoldrick fired the Blades in front before the break, before goals from Mark Duffy and Billy Sharp confirmed the success, but Wilder wasn't particularly pleased with the opening 45 minutes.
He remarked: "Second-half, we were really good. First-half it was tight, and Wigan missed the best chance of it in my opinion.
"We were loose in possession and it took a while for us to get going. We probably scored against the run of play.
"We knew we needed to lift it second-half. Wigan are a good side with some players that can hurt you, but it isn't going for them at the moment. We needed to put them to bed and thankfully we did."
Wilder continued: "I'm not satisfied with us being in control and reasonable, I want us to go and take the game away from the opposition.
"We've set high standards and to win games in the Championship you have to do a lot of things right, it was a slow performance first-half, but we smartened ourselves up.
"The second goal is a great counter attacking goal, the best we've scored all season. Deano gets a ball our quickly and within two passes it's in the back of the net.
"The third really put us in a position where we were nice and safe."