For example I did a stint at a F500 company where 1) a data engineer did not know how to use multiprocessing to parallelize a multi-terabyte S3 upload 2) an internal tool that fired off hundreds of network requests did not use concurrency and hence had 30+ second latency 3) a certain other team was dumping hundreds of terabytes of logs that nobody even knew the schema of into S3 automatically, and none of it was ever touched. Also seen: "data scientists" who did not know Python and executives that spent more time talking about Scrum than any concrete execution.