In my opinion, the procedure he describes sounds great to measure the skills of the candidate(s), but that's too early to called the 'Best' resource of the bunch. It will not be until he or she is actually working there that you will be able to measure the real quality (both on the technical and the human perspective ) of him/her.
Yes, the candidate does have to fit in with the team. However the article mentioned that he was doing a lot of recruiting for distributed teams. Therefore the output generated would probably be worth more than how the people get along face to face.
