How was Microsoft Office Mobile Designed?

The lead interface designer who used to work for Microsoft details how he and team (1 other person) worked to develop the interface for Microsoft Office on Windows Phone.  He discusses the balances between different platforms and the challenges of collaborating with so many other teams, each with their own incentives.

https://designexplosions.academy/design-explosions-4-office-mobile-eb0f7a94f448#.p2m3pnvvr