Don't forget all the death marches to meet unrealistic deadlines that some exec or sales rep pulled out of their ass.

In far too many organizations devs are running around like the proverbial headless chickens to ship! ship! ship! while ops are endlessly fighting fire after fire.

Many teams don't have the time or manpower to afford the luxury of being proactive, and when anyone suggests doing so, tries to put the breaks on, or asks for more resources they're treated like troublemakers.