There's no foolproof way to know the future for Dril-Quip (NYSE: DRQ) or any other company. However, certain clues may help you see potential stumbles before they happen -- and before your stock craters as a result. Rest assured: Even if you're not monitoring these metrics, short-sellers are.
Big investors like Warren Buffett have the clout, time, and resources to evaluate a potential investment's management face to face. You may not have quite such a mighty address book, but that shouldn't stop you from assessing the people in the executive suites.