Egenera, the very first company to build a blade system meant to handle peaks and valleys, has reportedly had another purge. It's now on its fourth CEO with CTO and EVP of engineering Pete Manca replacing Mike Thompson and product marketer Ken Oestreich in as its latest marketing VP. A Twitter tweet claims the company is shy a bunch of other folks. It did not return a call. Egenera has been trying to morph from a hardware company into an ISV based on PAN, its infrastructure management and orchestration software, which Dell OEMs for its blade-based Datacenter-in-a-Box and its Pan System.