Every position should have a job description to set the parameters of what is expected of each employee. Change is another thing that causes problems within an office. Some people welcome change and are ready to jump on board. Those people are comfortable in their roles and routines. Others who are resistant and even hostile when you change equipment, operations or procedures are often insecure about their ability to do a good job under the new system.
People often accept changes more readily if they have a voice in the process.
You win their commitment by including them, and you may learn something that you have overlooked. This person can destroy an office by intimidating other employees, who will leave at the first opportunity. Unless someone in authority steps in and deals with the problem, it will never go away and will only get worse. This situation has a demoralizing effect on the rest of the staff. This anti-social behavior that can really hurt staff production.