@TaxGuyBill wrote "If they can't agree, they shouldn't be in business with each other."

That's why I discourage partnerships.  One of two things will happen: The business will make money, and the partners will disagree about how to divide it.  Or the business will lose money, and the partners will disagree on who covers it. 

But if they insist, there should be clear rules on how decisions are made.  For corporations, it's not an "Operating Agreement."  That's language for LLCs.  The corporation has a president or CEO, who reports to the Board of Directors.  Who are probably the same three people as the shareholders.  So after a half hour phone call, you would be back where you started.  Two dogs chasing their tails aren't going to solve a problem that one dog alone can't deal with.