What they should do is exactly as stated in the principles of military leadership
1. Know yourself and seek self-improvement. By properly evaluating your own weaknesses and strengths while endeavoring to improve those areas daily, you will continually improve your abilities and performance. This is an important trait to pass on to your employees for their own benefit and your unit’s.
2. Be technically and tactically proficient. Keep current with the latest technical developments in your field of expertise and know how to deploy your resources for the maximum return on investment. This is another great development principle for your employees.
3. Develop a sense of responsibility among your subordinates. Drive accountability down to the base level among your staff. Make sure they know that you will hold them accountable for their actions and assignments.
4. Make sound and timely decisions. Ensure that your decisions are well thought out and that you’ve taken into account all relevant information. Don’t act rashly or out of anger, desperation, or any other emotional state.
5. Set an example. Lead from the front – make sure that your staff sees you as a role model. Be visible in your daily activities and hold yourself to a higher standard – this will motivate subordinates to improve themselves.
6. Know your people and look out for their welfare. Only by demonstrating that you are interested in and concerned for your employees’ welfare will you win their loyalty. A good leader is a compassionate listener and understands what motivates his team. Do you convey an attitude of “I’m in it with you” or “I’m looking out for myself and you are all on your own”?
7. Keep your people informed. Information is the life’s blood of any organization and only good if it is shared across the widest possible spectrum. Be sure to communicate promptly – good information received too late can be the same as bad or no information at all. Share your ideas and knowledge with your staff – this will make them feel included and valuable.
8. Seek responsibility and take responsibility for your actions. Be prepared for your next assignment and take charge of all areas of responsibility. If a mistake is made, stand up and take the heat. By doing so, you will demonstrate a key principle of leadership: we are all fallible and make mistakes, but it is how we respond to our mistakes that separates the professionals from the pretenders.
9. Ensure assigned tasks are understood, supervised, and accomplished. Trust your employees to do their jobs, but verify that assignments have been completed to your standards. While you shouldn’t hover and micromanage tasks, you also should not wait until a deadline to discover that it was done poorly or improperly. The military excels at giving briefings and status reports. When your staff is able to provide you with positive, comprehensive updates, they’ll feel encouraged and you’ll know that the project is on track. If it’s not, then you can offer advice and guidance on how to get back on track.
10. Train your people as a team. Have your staff work together as a team and cross train on each other’s responsibilities. This allows them to utilize each other’s strengths and to feed off of the team synergy. Teamwork develops a sense of shared responsibility and commitment to the objective. You’ll also have backup in the event of a team member’s prolonged absence.
11. Employ your team in accordance with its capabilities. Know your limitations and those of your people and department. Don’t take on more than you should. By knowing your limitations, you’ll know when to call in the reinforcements or when to say “no.”
What they should NOT do is fuck employees or gripe to employees about other employees.