So a dev is hired out of school to build CRUD forms in (VB6|GWT|Something similar). Most likely they master the technology in a few months and now just take new/change requirements and never deal with much beyond the original tech. In a big company where changes can take forever, the dev spends a lot of time waiting on new requirements, going to meetings and acceptance. Before you know it, a lot of time has passed and the dev is still just building CRUD forms in whatever technology that happened to be put on when they were hired.