Says right on the list that he schedules all of his meetings for the afternoon. The 3 hours of deep unbroken undistracted work in the morning (if he actually is able to pull it off) would definitely be a more productive work day than your average 9-5 office worker. It's been shown in studies that the 40 hour work week of an average middle manager in an office produces very little value to a company, and is full of useless meetings and distractions that derail concentration.