Yes. The best thing AMD has done in a decade was replace the CEOs, who were previously just business people with Lisa Su, an actual computer engineer, and IBM R&D specialist.
Then head hunting back Raja, and Jim Keller, along with establishing RTG so the GPU division isn't controlled by the CPU one anymore.
Raja has said many times now how they those perspective on GPUs, and were over one generation behind as a result.
Polaris was fully done by the time Raja arrived, and he probably had little impact on the early designs of Vega. I hope that due to the delays it means he's trying to squeeze more out of the design.