There's another side to that, as well. Developers' time is expensive, and the time it takes to get feedback from code runs adds up when you have lots of develo

There's another side to that, as well. Developers' time is expensive, and the time it takes to get feedback from code runs adds up when you have lots of developers. Especially if the roundtrip times are short enough not to allow switching between tasks, but long enough to cause constant "wall time waits". I'd be more than willing to have couple of extremely skilled developers profile and optimise the common code so that the feedback loop becomes shorter for everyone. That way more of the yet-unwritten software might just be tackled. My old boss once had me spend more than a week packaging and streamlining our access VPN configurations. When I asked him about it some time later, he explained that even though I was away from billable projects for that time, it would have cost a whole lot more overall to have all our developers and managers massage their setups every time something changed. Large figures are sums of lots of small figures...