1) Find a manager that is successful in your company and is generally admired. Get to know him/her and learn what they do right, what they do wrong, and what they know about the culture of the company. When you know them well and know their secrets well, find the next one.
2) Find a very successful manager that runs a similar department to yours in an excellent company reknown in your industry. Get to know them, figure out what they and their teams do right, what they do wrong, and how the culture of their company works and differs from theirs. Fix yours that way or have good enough relationships to join theirs. When your group is better than that group, find the next one.
3) Find out how your company makes money . . . really makes money -- what do they make, what do they sell, who do they sell to and how much of each thing do they sell to whom and how. Figure out how your department fits into that and how you can best fit those goals. Do those things. Figure out what doesn't make money (or worse wastes money at) -- aggressively try to eliminate those things.
4) Figure out what your team is good at and what it is bad at. Cross that with the results from #3. Focus on getting your team better at things that help the company make money and getting rid of things that make it lose money.
5) Respect people -- even those you don't like. You can learn something from _everyone_. Even if it is to just avoid making the foolish mistakes they make. Have enough respect for those people who work hard and pull things through for the company to let go those who slack off and basically leach off of their coworkers. Help those who aren't good at things, but really, really want to get there. Consider everyone's skillset as they are and reward each achievement and each step forward for people at their level.
6) Have a plan. From the details of #3, and the development of #4/5 and the examples of #1,2 figure out what goals get you closer to achieving those ideals in the the next 3, 6, and 12 months. Every quarter, reassess where you are and tune up your goals so they stay relevant and you measure your progress.
7) Measure your progress -- success or failure -- at every turn. How well do you work and how well do you create product? How good are the things you make and how good are your processes/tools for making them? Use your comparative analysis with external and internal teams to figure out how they operate as well and figure out how to measure it and improve it. Don't be a slave to numbers but don't be ignorant of them. If you pick the wrong metrics, then you learned that you need better metrics.
8) Act like the manager you wish you had. Don't be a jerk, and don't gossip. Talk to people face to face and act with integrity. Your group and peers are you community - treat them that way and build the community stronger.
9) Build your self and your group. Figure out what you all are weakest at (that matters) and get training and practice at getting better. Make it a quota to do this at least annually.
10) Manage yourself and your own stress. Have a todo list of the next top 3 most important things to do at all times -- do those next. Take care your health, sleep well, eat right and learn to leave work at the office enough to not bear the burden of your whole team's worries when you go to bed at night.