It can be very frustrating to get people to do what you want them to do but the ability to get them to agree with you means you are a step to getting your business ahead.

I remembered a friend of mine lamenting severely when he got a job to manage a project as well as increase sales by 20% in one year. He was saying if it were to work on numbers, it would have been easy but working on humans was a very difficult task. It took him a while to get his team to understand what he was doing and were he was going.