"It is wise to direct your anger towards problems - not people; to focus your energies on answers - not excuses."
William Arthur Ward, 20th century American writer.
While easy to get angry with the person(s) you believe caused the problem, that's just a distraction.
Identify the issue(s) that need correction and move on to the solution.
If that involves people, so be it, but don't start with that or end with assigning blame.
That's not a solution.