It's complexity, not creative work. There are entire industries based on delivering creative work on strict deadlines. The quality of the products is often unpr

It's complexity, not creative work. There are entire industries based on delivering creative work on strict deadlines. The quality of the products is often unpredictable due to the nature of creative work, but the people doing the work can meet the deadlines reliably. In a complex project, the unpredictability affects both the quality and the functionality of the product.