When leadership is broken down into its most basic and simple form, it can be boiled down to one short statement: setting the conditions necessary for your people to win at work

So when the rubber meets the road, look for these four red flags to signify that your managers--whatever level in the hierarchy--just aren't cutting it.

1. When people feel disrespected

In a 2020 poll conducted by ResumeLab on what makes someone a bad leader, it was found that an alarming 72 percent of the surveyed population was treated in a rude or disrespectful manner by a boss. Additionally, nearly 70 percent of respondents were criticized in front of their peers, and 83 percent of them felt bad about it. Finally, and perhaps the worst case of all, an eye-popping 42 percent of bad leaders blamed others for their failures, which 84 percent of employees felt was unfair.

2. When bosses feel like they're never wrong

Ever work for a manager who's always right and you're always wrong? Maybe someone who has a hard time taking blame or ownership for things and will never admit to having made a mistake? Well, this is a self-serving boss more concerned with preserving his or her reputation than meeting the needs of the team. This type of behavior is also a huge red flag that you cannot ignore. 

3. When bosses show abusive or bullying behaviors

Research shows that one of the most common forms of incompetent and destructive leadership behaviors is "derailed leadership." Derailed leadership is exemplified by leaders who may bully, humiliate, manipulate, or deceive. They're also often missing in action (absenteeism) and engage in behaviors such as fraud or stealing. In similar studies uncovering the dark side of leadership, researchers found that leaders may "use their charismatic qualities for personal gain and abusively turn against what is good for both followers and the organization."

4. When bosses take all the credit

A BambooHR survey asked more than 1,000 U.S.-based employees to rate 24 "typical boss behaviors" from "totally acceptable" to "totally unacceptable." The worst behavior a boss can have in the workplace? It came down to taking credit for an employee's work. BambooHR found that 63 percent of respondents said hogging credit was unacceptable, or something they would consider worth quitting over. Women, in particular, felt even worse about their bosses wrongly taking credit, with 71 percent of them calling it the worst behavior.