Clever (YC S12) Hires VP Engineering from Square

One of the Clever founders here & I'm very excited to have Ben onboard. We're 55 people today, with 22 engineers.

I'd love to crowdsource some advice from HN. Who's been part of a great VP Engineering transition? Who's been part of a crappy one? We're off to a great first week, but would love to hear thoughts on challenges that might lie ahead :-)