The next time someone says you can't build skyscrapers that way...

Beyond pointing them to how skyscrapers were built before the Great Depression (see the Poppendieck's new book), also point them to the Lean Construction Institute and Target-Value Design:

• Rather than estimate based on a detailed design, design based on a detailed estimate
• Rather than evaluate the constructability of a design, design for what is constructable
• Rather than design alone and then come together for group reviews and decisions, work together to define the issues and produce decisions then design to those decisions
• Rather than narrow choices to proceed with design, carry solution sets far into the design process
• Rather than work alone in separate rooms, work in pairs or a larger group, face to face