The workplace politics is something that made me quit corporate work. It is good that in your company people take ownership of issues. In a lot of companies that I've been, everyone, especially the managers are doing their best to push the blame on other teams. Some bosses even try to go behind other managers and talk directly to another team's staff, hoping to find a hole in their defenses. It was honestly very frustrating and tiring, since one always needs to be on guard in their emails, and how they talk to other teams.