MAKO Surgical has had a rough go of it lately after revising guidance down twice in as many quarters. The recent disappointing sales of its RIO system has come to roost in the management suite as VP of sales Stephen Nunes resigned and CEO Maurice Ferre will take over on an interim basis. Watch and find out what it all means for investors and whether the management shakeup will help rebound a stock 70% off its 52-week high.