> We had backend devs doing frontend development with jQuery when we were using Vue. Frontend devs started doing UX design and things looked like trash. QA was

> We had backend devs doing frontend development with jQuery when we were using Vue. Frontend devs started doing UX design and things looked like trash. QA was done by basically anyone so as you can imagine bugs started appearing everywhere. Yikes, what a terrible take. To me, "T-shaped" people have at-least-minimal competence across a broad spectrum of the business. They don't do the work of other specialties, but they use their knowledge to avoid making excess work for those other specialties -- for instance, they make better-informed suggestions in brainstorming. Your backend devs know how the frontend stuff works, so they don't make tortuous APIs; they know how QA operates, so they plan for testability; they know the pitfalls of UX so they don't make rigid state-machines that punish users. And, if a disaster strikes and a team needs a helping hand in a pinch, maybe somebody with some depth outside of their role can pitch in. Making everybody do everything always is not T-shaped, it's, I dunno, #-shaped.