Greg Campbell, the newly named chief of staff to newly elected Assembly Speaker Toni Atkins of San Diego, has been a legislative staffer for more than 20 years, including as top aide to a succession of Democratic speakers. If anybody knows the Assembly inside and out, it’s Campbell. The chief of staff is part political operative, part employee manager, part schmoozer of the caucus and part communications strategist, all characteristics that have to be coupled with solid social skills and the ability to say the most important word in the chief of staff’s vocabulary – “no.”