What would you say about a building maintenance team that left 3% of the burnt out/bad light bulbs around? Most of the stuff he's talking about can be monitored and caught before they become a real problem or dealt with as soon as they are discovered. (Projector bulbs have expected lifetime, network printers can tell you when they're out of paper, etc.) To me, it just sounds like they have solid monitoring and procedures in place for preventative maintenance.