When Alon Levy was comparing transit construction costs in various places around the world they found that having in house experts was one of the biggest causes

When Alon Levy was comparing transit construction costs in various places around the world they found that having in house experts was one of the biggest causes of low costs. Though see also this critique[1] of Boeing's massive outsourcing and compare to SpaceX. [1]https://s3.amazonaws.com/s3.documentcloud.org/documents/69746/hart-smith-on-outsourcing.pdf https://s3.amazonaws.com/s3.documentcloud.org/documents/6974...