Superstars are necessary when you just get started and you don't really care too much who's doing that magic thing that pulls off the whole ship a few hours lat

Superstars are necessary when you just get started and you don't really care too much who's doing that magic thing that pulls off the whole ship a few hours later. However,at some point the superstars need to go and be replaced by more common people. This isn't unique to the software world.