Do they take credit for others’ work when things go right? Or do they make sure that those who did the work receive the credit they rightfully deserve? Do they let others make their own decisions and hold them accountable for the results? Or do they micromanage, insisting that all decisions be approved first by them? Fiedler also assumes that leadership styles are tied to leaders’ underlying needs and personalities. Since personality and needs are relatively stable, he assumes that leaders are generally incapable of changing their leadership styles. In other words, the way that leaders treat people now is probably the way they've always treated others. So, according to Fiedler, if your boss's first instinct is to yell and scream and blame others, chances are he or she has always done that.