That's why I said "innovative, ships products, ahead of their competition, AND people like to work there". You can't get all of that without a quality, cohesive team covering many disciplines. And a bad hire into such a company increases the danger of derailing things. Thus, it's in any good company's best interests to carefully iterate and improve on their hiring practices, and any company that survives a long time with all of that intact is probably doing a lot of things right, including hiring.