the WSJ agreed

"But what the former chief operating officer didn’t acknowledge is that for a long period of time he and Mr. Conrad worked closely together, sitting next to each other at work and meeting regularly for dinner, according to a person familiar with the matter.

The person said that Mr. Sacks, who describes himself in his Twitter profile as a “hypergrowth addict,” helped spearhead the company’s large fundraising shortly after joining the company in December 2014 as well as its strategy to grow quickly despite a lack of internal controls and processes."

http://blogs.wsj.com/digits/2016/02/08/zenefits-ceo-parker-c...