Using the too expensive AWS and Google Cloud where DO would have been totally fine.
People who can't admit their mistakes or even blame others for theirs.
Bad architectural decisions.
Kubernetes instead of Docker Swarm for small clusters without any traffic or just plain Docker.
Expensive Github instead of free Bitbucket.
Asana, Jira, Pivotal Tracker instead of free Trello.
Slack.
Self-hosting of non-core tools.
Team retreats nobody wants.
Team events nobody wants.
Team members with weak communication skills.
Teams which are not synced, where some come after lunch and some finish few minutes later.
Using the too expensive AWS and Google Cloud where DO would have been totally fine.
People who can't admit their mistakes or even blame others for theirs.
Bad architectural decisions.
Kubernetes instead of Docker Swarm for small clusters without any traffic or just plain Docker.
Expensive Github instead of free Bitbucket.
Asana, Jira, Pivotal Tracker instead of free Trello.
Slack.
Self-hosting of non-core tools.
Team retreats nobody wants.
Team events nobody wants.
Team members with weak communication skills.
Teams which are not synced, where some come after lunch and some finish few minutes later.