When I started my career in financial services 20 years ago, the IT team was still in the basement of our imposing office. Writing software was a multi-year process that started with detailing exactly what you needed in a business requirement document upfront, then waiting patiently for tech teams to build what you thought you described, with a big reveal at the end — several months or occasionally years later.
In that time, your needs and regulatory constraints may have shifted and the people behind the original ask may have left the bank.