It's a requirement of Delaware corporate law to have at least one board member. In theory, the board is there as the elected representatives of the stockholders, to make sure that management is acting in the best interests of the stockholders, and to replace management if that's not the case.
In other kinds of entities, like an LLC, the company can be managed directly by the members (stockholders), but that's not very efficient for larger organizations, since you'd have to get votes from the whole group of stockholders for everything instead of just having a small group vote at regular meetings.
In other kinds of entities, like an LLC, the company can be managed directly by the members (stockholders), but that's not very efficient for larger organizations, since you'd have to get votes from the whole group of stockholders for everything instead of just having a small group vote at regular meetings.