Employee experience. The biggest problem at the company I recently left was inexperience. The company thought they could hire cheap and simply cross train and up-skill everyone. A FTSE 100 company. Eg a dev manager was a js dev now managing half the 200 odd dev dept. Hired mostly PHP devs who were all going to be cross trained as Go devs. My last manager had no management experience and was also the dept's Go tech lead, with no Go experience - a PHP dev, now starting at amazon, should be entertaining. Another Go dev on the team an ex-lawyer with two years dev experience as a ruby dev. The place was disorganised, frustrating, and not delivering. Toward the end of last year people started leaving, then more, then more - exodus. The dept has effectively collapsed as it's now a fraction of the size and a significant proportion of the remaining devs are new. It won't absolutely collapse because like all big corps they'll just keep hiring replacements and eventually paper over the cracks. They're now "restructuring", but the same rookies are still running the show so they're probably just going to botch it all over again, just in a different way.