for instance, eco-minded engineers imagine ways to make better products without toxic chemicals so that plant managers don't even have to buy and manage them in the first place, or lose sleep over potential spills that could harm workers. High-performance companies plan from the outset how to make products easier to assemble and disassemble, which can speed up manufacturing processes, reduce defect rates, improve product reliability, lower service costs—and facilitate the recovery of valuable materials that can be reused or sold for profit.