Few investors like it when a high-level executive makes a quick departure.Data protection company Commvault Systems (CVLT 0.29%) couldn't protect itself from a share price dip on Friday. It announced a C-suite transition, which was met by a mild investor sell-off. The stock closed the day down by 0.3%, comparing unfavorably to the 0.2% uptick of the bellwether S&P 500 index. Major CFO changeAfter market close Thursday, Commvault announced that CFO Jen DiRico is departing the specialized tech company. She wi ...