If we follow that analogy, while an electrician shouldn't tell a plumber how to do their job or fulfill their responsibilities, we would suggest that you still need both to build a house and that you need a good contractor to facilitate communication and planning.
Mais il ne faut pas oublier, dans l'esprit de cette métaphore, que pour construire une maison, il faut également un bon entrepreneur pour faciliter la communication et la planification.