Right or wrong, just like today's announcement that the BP board is firing their CEO, nonprofit Board's fire their execs. Yes: right or wrong.
In our experience, many times nonprofit Boards don't fire their CEO's based on solid performance measures. Instead, they fire because of elements like trust or relationships or other less tangible and loosely documented reasons.
Can Execs do something about this? Sure. Get performance focused but probably not until a sound relationship footing has been established. Check out this BWB Solutions article for our insights on this matter.