General lack of competence/direction. We spent over half a year building something with no users being allowed to use it, and, unsurprisingly, it did not do wha

General lack of competence/direction. We spent over half a year building something with no users being allowed to use it, and, unsurprisingly, it did not do what it was supposed to. Product org's idea? Let's do it again, without talking to the users until 6 months later. The entire dev team bailed within a month. The PM still works there, 5 years later.