one employee aggressively confronted me, as he thought I was another consultant coming in to sell yet another model to Zappos
The Fatal Gap Between Organizational Theory and Organizational Practice
Bud Caddell

That is strong. Can you share his story or others you talked at zappos what did the consultants did to them that made them this angry, sad, shaken?

I work on implementing Holacracy at my company and more details would help a lot to decide if this is something I want to continue doing.