Diversity is an area where boutiques excel. 6 of the 10 highest scores come from the segment, including Putnam Associates, which kicked McKinsey out of the top spot. That happened because McKinsey's score in this area fell rom 9.667 to 9.410. Like last year, BCG and Bain both ranked in the Top 10, with Booz Allen Hamilton cracking the Top 10 at #9.