I don't think that would be enough: adding those people to a team won't matter if the overall vision isn't there.
It needs, and I'm about to choke on my words here, a Steve Jobs at the helm saying "No, it needs to be like this".
Yes, I know that won't achieve perfection but there needs to be a coherent vision of what the OS is trying to be, or who it is aiming for.
Linux, right now is pure techie-driven. There isn't any vision at all! Every distro is subtly different and reflects the wants of the team that work on it.
It needs a company to take a distro and pick a direction, e.g. Linux for normies would have to remove almost all traces of command line, hard disk partitions, configs, package managers etc. All that shit would have to be hidden away, still in the background and available if wanted, but to use the OS it should not be a requirement.
