I once worked with an CTO who was under the impression that Rails was a major reason why the legacy app was so slow and demanded a rewrite in Java (that's what

I once worked with an CTO who was under the impression that Rails was a major reason why the legacy app was so slow and demanded a rewrite in Java (that's what he knew). It deflected the real reasons - of completely incompetent product managers, management and inexperienced developers. The tech stack wouldn't matter if the product was being managed for over a decade by idiots.