The Millers travel to sixth-placed Peterborough on Saturday sitting eight points above them and a further six ahead of MK Dons in seventh.
"We have got a big week ahead of us," he told Press Association Sport. "We go to London Road and then host Brentford and Bristol City and if we beat those three then we will certainly be believing we can make the play-offs.
"We have to keep the players focused on the performances, it is my job to make sure there is no complacency from here until the end of the season.
"Our objective is first and foremost to achieve a play-off place because a lot of people in the game doubt we can achieve this.
"Let's get that hurdle over and then if we can get in the play-offs then let us see if the top two is a possibility.
"We have seen Wolves and Leyton Orient getting beat and there is a lot of football to be played and I count us in that. We have to deliver a lot of football just to get in the play-offs."
Having left Crawley on the verge of back-to-back promotions before his Rotherham calling and then guiding the Millers out of League Two last season, Evans wants to make sure it's four out of four.
"I have been in a bubble with (assistant) Paul Raynor in the three summers because we have had promotions, two with Crawley and one with Rotherham.
"So no promotion would make it a bit of a damp summer for us."
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