A good structure to think about is starting out up front with what your long term goals are. State upfront what you are passionate about solving/ what impact do you want to have in the world, then paints a clear picture of how you will get there in the following chronological way.
1.First off why you are passionate about that topic( past experiences professional and personal that led you to this MBA decision)
2. How will an MBA and an MBA particularly at school x help you reach your goals
2. What are your post MBA target roles and how they will help get to those long term goals.
You should have some clear illustrative examples along the way, like what resources at school x would help you reach your goal, what kind of organization post MBA will be ideal to work in towards your goal and long term what organization helps you contribute to the impact you want to have that you stated at the beginning of your SOP. Remember your SOP is a snapshot in time of your ambitions and don't get hung up on how true it may be in the future. Business school is often a period to explore all this and a lot of people change along the way. Business schools want to know upfront that you have a clear picture of where you want to go. Focus on those pieces and you will be good to go! Good luck and look up Zambuko Advisory for a help with this and other application needs you may have.