The problem is that those companies exists to fulfil a very different objective than what in-house developers are expected to provide. You should see them as a

The problem is that those companies exists to fulfil a very different objective than what in-house developers are expected to provide. You should see them as a Leasing system for Generic Development Resources: flexible and clear billing, fleet management, transparent reallocation of resources, economical and instant capacity to increase or decrease the fleet sizes. Their line management reflect that, and their developers have to reflect that too. They are not in the business of delivering software or business feature, they are in the business of providing development hours in the most flexible and smooth fashion. "Just do it" is what their client is buying.