Sorry, I was perhaps not quite precise enough. I agree that collaboration on complex technical topics is wonderfull. There is quite a lot of collaboration and we do have a great team. The system is divided to many components and each of those components has usually only one or two active developers.

The inherent technical complexity of the components is such that sometimes a feature needs days of coding - thus the 'more locksmith, less of a ballgame' analogue. I should have perhaps pulled some other analogue.