A very impressive experience based blogpost by Kevin. It rightly emphasizes the equal if not greater importance of communicating over crunching!
I guess its true not just in an internal vs. consultant kinda scenario, as Kevin mentions, but also in the case of a Manager-Analyst relationship. There are times when I have seen the Engagement Managers and above have a tough time with the team, because they want to hear a lot of things, but not just the numbers! ;)