I’ve seen this happen at so many companies I’ve worked out. Someone is spectacular as an individual contributor, so they’re promoted to a managerial position, yet not given the training or support to learn new skills. They’re reluctant to share they’re struggling, because they were promoted because they were a superstar. I love that the company mentioned in the original article supports developers turned managers to return to developers, rewarding them for the skills that led to their promotion in the first place.