There are many gurus offering all manner of magical solutions to dealing with the problems and pitfalls of management. However, beware of false prophets. There is no easy answer to most of the problems a manager encounters. However, good management training with a generous portion of common sense can help ensure that managers do not become overwhelmed and are able to retain a sense of perspective.
Many managers feel that as they are managers, they need to know everything, or at least, give that impression. Indeed this is what contributes to making management a very lonely business. However, the key to good management is not having all the answers; it’s knowing where to find the answers and acting upon them. Managers should ensure they know their colleagues particular areas of expertise. This is an area where mentoring, particularly for new managers, can be extremely helpful.
It is also worth remembering that just because you are a manager it doesn’t mean you should stop your own personal development. Unfortunately, many managers have never thought about this subject on their way to management and company cultures often consider this concept an expensive luxury. It is not. Find a good life/work balance and encourage your staff to do the same. Many people spend more time at work than at home (if you exclude sleeping) so make it a priority to enjoy your work.