There is one arch design and two impl teams per Papermaster.1. A dedicated team to develop the CPU
Going by what we've been told, there should have been an impl team on Ryzen2. From the outside, it looks to have been pretty thin development. Additionally, work done on memory, in 14nm, would not have been wasted effort for Zen2 -- unless the memory subsystem is getting a complete overhaul (the IF is, PCIE is, are they really planning to revamp mem as well -- :gulp: ). Aside from that, though, it seems like we're in agreement -- extra effort was put on Zen2. What's unclear to me is how much this is a result of running the plan vs unexpected road bumps.