The consultant mentality continually challenges the status quo and boldly investigates problems to discover how things can be improved. Move from problem space to solution. People tend to get stuck in the way they work, the way it's always been done. Any position can adopt a consultative mentality, focusing on how to solve problems rather than on performing a task.
As you can see, the ability to create and maintain a consultant mentality is no small feat, and even for those of us who manage to cultivate this particular skill set, we are left with a fork in the road of consulting mentality. A consulting mentality causes leaders to stop leaning towards action and reflect more deeply on business challenges.