The CEO Shuffle is in full force in the IT infrastructure industry. Geoff Barrall, founder and CEO of Data Robotics, recently stepped aside for Tom Buiocchi, and Alex Bakman of VKernel shifted to CTO, bringing in Doug McNary. Now Panasas and ParaScale are replacing their CEOs with industry veterans. The message is clear: The economy is improving, and investors want their portfolio companies to begin growing again.

Just as public cloud computing is beginning to catch on, the enterprise data center world has been shaken up by the biggest IT product vendors. Rather than sit back and watch their wares commoditized, companies like Cisco, EMC, HP, and now HDS are stepping up to the plate with integrated “stacks” that include server, storage, networking, and management software. The next-layer players, VMware and Microsoft in particular, are joining hands, too, eager to support these stacks. To paraphrase the wise Jedi master, Yoda, “cloudy, the future is.” So, the stack wars have begun!