Nigel Clough has hailed Jamie Murphy and Conor Coady in the aftermath of Tuesday's important victory at Crawley Town.
Murphy provided the crosses for Coady to score both the goals as the Blades hit back from Saturday's defeat to return to winning ways.
"Jamie has produced two great crosses and we've been encouraging Conor to get in the box," said Clough.
"That's six (goals) now for Conor, all since around Christmas time. His energy levels are fantastic and with the likes of Michael Doyle protecting the back four it gives him an opportunity to get forward.
"Timing your runs is vitally important and hopefully Conor has taken that on board because that certainly helped him get his goals - if we had got the penalty we deserved when Kieron Freeman was fouled, Conor might have had a hat-trick because he could have taken it.
"Jamie, meanwhile, is playing consistently well and we're glad we started him because it was a toss up who we rested between him and Ryan Flynn.
"Jamie is a threat with his pace and directness, as a full-back you cannot know what he is going to do."