Just today, my team had a developer meeting. The tech lead started out by complaining about how he has to do an untested unplanned release today because another team made some urgent changes. He's the only person who knows how to release it. The other team didn't communicate until today that a release is necessary. We've done two other releases in the past month and both required a day of troubleshooting to fix issue…
What... does he know?
Fine, he doesn't get into the code itself. But the project and its dependencies? Yikes.