Hi James,
See my answer to Dylan
hashnode.com/ama/with-paypal-developers-cj793fn2q…
I would say the biggest internal "conflict" was that eBay (Who owned PayPal at the time of the transformation), was also developing it's own Node framework. We spent quite a bit of time doing pros/cons analysis of both frameworks, trying to decide which features would be more useful.
Some of the early meetings felt a bit like the Thunderdome: Two Frameworks enter. One Framework Leaves