Campbell Alliance's top people know their practice areas well. The field-level consultants are uneven--some with good people skills, others with analytical ability, some with both. The emphasis is on giving a slick well-edited presentation more than on understanding the client's real needs.
Campbell Alliance's sales consultants are well-regarded in the industry. When I worked for Campbell in a different practice area, I was directed to falsify the results of survey research--add to the number of interviews supposedly conducted, with data based on the 15 or 20 actually conducted. In one case, I was directed to "interview" another Campbell consultant who had some experience in the field as if he were a pharma exec. I left the firm a few months after that.