AUSTIN, Texas--(BUSINESS WIRE)--Zenoss Inc., a leading provider of unified IT monitoring and service analytics for virtual, physical and cloud-based IT infrastructures, today announced the addition of Bill Bock to its board of directors. Tweet this: .@siliconlabs Bill Bock joins @zenoss board of directors www.zenoss.com/about/boardofdirectors #ownit #ITmonitoring #operations Bill Bock is Silicon Labs’ President and Board Director. As the Executive Vice President and Chief Operating Officer of T