Milpitas City Hall, for the life of it, can’t seem to hang on to its top-tier employees. Human Resources Director Carmen Valdez became the latest in a long line of department heads to abruptly leave. Valdez, who worked at the city for 30 years, accelerated her retirement date three times. But on May 15, she was reportedly “walked out” without any public explanation. Sources who work with her blame City Manager Tom Williams, whose angry outbursts have allegedly scared off a litany of staffers. As reported, Greg Armendariz stepped down from his post as public works director in 2012 for some unspecified medical problem. His successor, Jeff Moneda, followed suit last November, taking a job in Foster City. Planning director Diana Barnhart also quit for purported health reasons. There are more—not to mention a steady clip of mid-management turnover—but we’re running out of column inches. Replacing directors is costing the city a fortune, as evidenced by the $24,000 budgeted to recruit a replacement for Valdez. Just before Steve McHarris left his post as planning director for a job in the city of San Jose—about week-and-a-half before his two weeks were up—he filed a complaint against Williams. Of course that complaint went through the head of HR, Valdez at the time, who forwarded it to city attorney Mike Ogaz. Ogaz brought the matter to the City Council for an urgent closed-session discussion and was rewarded for abiding by due process by becoming subject to a personnel review himself, courtesy of Williams ally and alleged mailbox-pilfering Councilwoman Debbie Giordano. Sources say Williams was none too happy about Valdez alerting policymakers to the complaint and made what was left of her City Hall tenure a miserable enough slog that she expedited her retirement.