Business Week Online has posted excerpts of a Q&A session with author and retail guru Paco Underhill, in which he discusses the positives and negatives of Apple’s retail stores. Underhill says he loves Apple’s retail stores, but notes that they could use some fine-tuning. “For customers coming in as families, it’s not clear exactly how they should use the stores. In [Apple’s] defense, I have thought the people who worked in the stores were very well trained. The stage set, though, isn’t as good as it could be.”