Whole Foods CEO says his least favorite employee is the know-it-all — and career experts agree for this reason

• Whole Foods CEO Jason Buechel told CNBC that he values flexibility from his employees.
• Career experts agree that this quality is important as CEOs are always looking for innovation.
• Being open to new ideas should also apply to leadership, a career coach told Business Insider.

Whole Foods CEO Jason Buechel told CNBC Make It that his least favorite employee in the workplace is the know-it-all.

"Somebody who thinks they know the answer to absolutely everything," Buechel told the outlet. "Somebody who thinks that it has to be exactly like this because this has always happened before. It's always going to happen this way."