Ohh -- you didn't tell us what company.
It's a company in the making...I'm doing my Principles of Business SBA and I have to make my own business.
The size of each of these departments depends on the size of the business. Most businesses start small, and one person may do several of these jobs.
What business are you making?
It's hard to explain...there will be a clothing section for my mom, a souvenir section for my friend, a karaoke and virtual dancing arcade like section for me, a food court and a lounging area for socializing purposes...I want it to become a teen or young adult spot to relax and have fun, that sort of thing :-/
Your finance department could be a part time contract accountant.
Your sales staff would be the people who work in each of these departments.
Each department head would probably be responsible for purchasing.
With such a small business, it would be important for the heads of each department to work closely together.
ok so my finance department can consist of 1 person?
my sales staff could be up to 10 people?
there doesn't need to be a purchasing department?
With a small new startup business, you couldn't afford many people. You could have 10 people on your sales staff -- but you wouldn't start with all 10. You and your family would be doing most of the work until the business gets enough income to be profitable.
OK, i get that...so the other departments wouldn't be needed then?