Also culture. I had a friend try with several German companies, but she said the leadership would default to "no", and every decision would need too much review. She even worked with some that opened offices in SF hoping to learn to move fast, but even those were way too cautious to succeed. Lots of premature optimization, and trying to establish structures and systems before any proof of concepts could be made. Obviously, this is just anecdotal but she had a real desire to have European growth in SF communities.