Most people tend to oscillate between inferiority and arrogance.

When you're underqualified but installed in a leadership role, your team won't respect you—they're all waiting to see you fail. Most people handle this situation poorly. They either become submissive and get sidelined by their subordinates, or they become overly defensive and authoritarian, trying to project a sense of authority they don't actually possess.

The result is often someone who wants to assert control through poor decisions but refuses to admit those decisions were misguided—ultimately messing everything up.