Scunthorpe manager Brian Laws hailed a "great display" after his side came from behind to win 2-1 at Coventry.
The Iron started well following an impressive 4-1 win at Walsall in midweek but fell behind against the run of play when Carl Baker fired in a free-kick after 35 minutes.
Leon Clarke converted what Sky Blues boss Mark Robins described as a "harsh" penalty to level seven minutes later before the striker added a second with a cool finish 15 minutes from time. Steve Mildenhall then produced two fantastic saves in six minutes of stoppage time to keep out Baker and Roy O'Donovan.
Laws was delighted with the win and felt it could have been more but for the referee, who disallowed another Clarke goal before the break.
"It's another step forward," said Laws. "We have scored another couple of goals, good goals and had another one disallowed, which shouldn't have been.
"The referee said it was an infringement on the goalkeeper but when you look at it again there is no infringement, he is nowhere near him so I don't know what he has seen. It was a great display. A great display of organisation on the park and discipline, that's what has been missing.
"I don't think anybody questions their ability because they can all play but it's whether they can do the dirty bits and they weren't doing that. Now they have seen the rewards. Players always buy into things when you get results.
"When you get a good result, they buy into it. When you get a second result, they buy into a bit more, then they get their belief. That's coming back and we have got them smiling again."
Robins certainly was not smiling when Scunthorpe were awarded that first-half penalty following a tangle between Clarke and Richard Wood. And he felt his side under-performed following a good win over Crawley in midweek.
He said: "On the back of Tuesday night's win and the games we have played recently I expected us to come in and have an assured confident performance. We didn't get it."