I wasn't there for the beginning but I got dropped into a corp that had amassed a "data lake" with 20k tables of almost worthless data. One senior data scientist lost their pet project to what turned out to be contaminated data that leaked outcomes into his model features. Basically checked out mentally and eventually quit after. It was a hopeless environment, engeers in one country were building products and completely silo'd away from the people who were supposed to use their data.