Rovers are without a win in their last six matches and have won just twice in 14 League One outings.
That run has seen them slip to 10th, five points outside the play-off places, but Butler is adamant their recent slump is not down to a lack of desire.
“I wouldn’t question anyone’s desire on a football pitch,” he said.
“We are all professional sportsmen and have a job to do.
“People can think that players are looking to the future but if players don’t get results and play poorly then they will have less options and will be playing themselves out of contracts.
“I know the group I have got here will give everything they have got.”
This afternoon sees, Doncaster host second-bottom Wigan Athletic, who have won just once in their last six games.
And Butler believes getting back to basics holds the key for Rovers, as they seek a much-needed victory.
He added: “The basics for me are hard work and running, and then when you have the ball, composure and enjoyment to create chances. That is what we have got to get back to. We have the players to do that.
“I believe you will see a different side on Saturday. There is a determination you can see in players’ eyes now.”
Wigan have among the worst defences in League One, conceding 66 times in 39 games, and least clinical attacks, returning 39 league goals this season – just two sides have scored fewer – but Butler insisted: “It is going to be a tough game against a good Wigan side.
“But I want it to be a game when I want my team to go out there and show what they can do.”
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