It was a legacy product where documentation had drifted from reality so far that marketing did not understand and were blatantly mis-selling it, this led custom

It was a legacy product where documentation had drifted from reality so far that marketing did not understand and were blatantly mis-selling it, this led customers to raise 'bugs' that were projects in themselves. Coupled to this everything was estimated by senior devs, everyone else was 'junior' and not to be consulted, even if that junior was the only person who'd worked on that product in over a year. The senior devs probably could have done it in the timescales they gave but no-one with less than 5 years experience there could find the responsible line of spaghetti.