For several years I worked at a place where the median tenure was about 18 months firmwide and only 9 months on the infra (e.g. networkings, k8s, DBA etc). This

For several years I worked at a place where the median tenure was about 18 months firmwide and only 9 months on the infra (e.g. networkings, k8s, DBA etc). This is despite being a 30 year old company that paid REALLY well. The high turnover led to some interesting downstream effects: - entire teams could be let go - so you tried to remove as many dependencies on other teams as possible - e.g. "application teams" did everything from development to project mgmt to infra work (you were given VM hosts and then the rest was up to you) - this meant that app managers could focus on building their apps - the downside was whenever the overall "pipeline" had to be fixed. e.g. data enters app A then goes to B and so on. B/c everyone was so siloed, problems injected in A could flow down to D,E,F but no one was really incentivized to fix them - it also meant that changes in individual apps were REALLY fast b/c you only had to convince one person (app mgr) to change them. On the flip side, large projects took FOREVER as everyone was doing something different.