The Blues have collected two wins and a draw from their last three games in the Championship.
The Blues have taken seven points from a possible nine in their last three games to remain in the Championship play-off hunt. Much of that success has come from how solid the side have been defensively, as they have managed to keep a clean sheet in each of those fixtures, and Rowett suggested that their ability to keep opposition at bay will be crucial to their hopes of securing promotion.
"Three clean sheets in a row is a very solid foundation," he told the Mail.
"If we had stood here three games ago and said that we are going to play Derby County away, Ipswich Town at home and Bristol [City] away - two tough away games and a very difficult home game - and to not concede a goal in any of the three - scoring six, we would be really pleased.
"You have to handle performances when they are not quite as good as you want them, you have to manage to either win the game or not lose it when you are away. It's all about picking points up."
With two of those wins coming against Derby and Ipswich, who are both seeking to remain in the promotion hunt themselves, Rowett's men have proved that they are now serious contenders for a play-off spot this season. The fact that the victories came in such an emphatic manner - with the Blues keeping a clean sheet in both - only confirms that point further.
And while the stalemate with Bristol City would not have given Rowett anywhere near the same level of satisfaction, he will be encouraged by their ability to guarantee themselves a share of the points by keeping the Robins quiet, even if they were not able to raise their game to the level of previous weeks.