If you own 90% of the stock you should be able to remove or replace all the directors, and once you do that your new directors can rehire you. There may be a lag if the company's charter prohibits shareholders from acting by written consent or calling special meetings, but even if that were the case, anyone owning 90% should not be out in the cold for long.
For instance you may retain the stock, but have explicit agreements where specific investors get to have a specified representation on the board. Then no matter how much stock you own, you can't get rid of those investors.
