One of the nice things about hiring for any software development team that develops open source projects is that you can often find great hires amongst the comm

One of the nice things about hiring for any software development team that develops open source projects is that you can often find great hires amongst the community of developers who are already contributing code and fixes and such to your projects. This way you already know the candidate is passionate about the work and thus don't need or expect them to lie to you about "wanting to work there their whole life". This got me thinking...why don't more companies do this? if you run a design or PR firm surely there are some internal experimental/lab projects you could open up for outside contributors to join in with. I know that many companies already do this. But I'm wondering whether this sort of software-world inspired collaboration could be made more prevalent.