If people are professionally or emotionally immature, it will affect their ability to engage constructively, or should that be productively, with each other, and, with the environment.
If people are professionally or emotionally immature, they are unable to lead teams; they are unable to function in teams; they are unable to sustainably pursue goals and basically what that means is that, in honesty, their working environment is not ready for performance management principles and practices. Which means there would be a perpetual disconnect between the human resource function as a strategic business partner, and the business itself.