Deane insists Wilder should be given the chance to bring the Blades back up next season.
"It's a really difficult one, Sheffield United," Deane told the Sheffield Star. "It's a club that has struggled to get any traction.
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"When Chris left, (Slavia) Jokanovi came in and did a good job, but he couldn't settle. They bought in Heckingbottom, someone very similar to Chris, and now Chris has come back in a very difficult period of time. I don't see how they can change away from Chris.
"They have to give him that opportunity to put right what has happened."