Gilbert.

https://en.wikipedia.org/wiki/Dan_Gilbert_%28businessman%29#...

Ahhh - interesting. If he can convince the top U of M grads to stay in Detroit rather than heading for the costs, he may be able to pull something off.

Are there many success stories of Silicon Valley companies leaving the Valley?

It's with Dan Gilbert and Detroit. He basically owns the city. My friends and I like to refer to the new downtown as Dantroit.