You also get the benefit of hiring several devs that already trust one another and have experience working together without stepping on each other's toes. That'

You also get the benefit of hiring several devs that already trust one another and have experience working together without stepping on each other's toes. That's where you can look at the product they have already developed and for what effort, and with some diligence, hire the teams that aren't dysfunctional. Or at least that's the idea.