[Kaimetsu]

Lemme break this down. The purpose of the manager differs between perspectives, but it's generally defined as: the maximisation of the playerworld's quality and popularity.

Procuring Staff: The ability to persuade people to work for the server. This is obviously easier if the server is already good.

Managing Staff: Inspiring them, giving them work that they are happy and able to complete, keeping them focused and interested in developing.

At the same time, regulating their behaviour, preventing them from slipping into corruption. Making sure their rights are suitably restrictive, monitoring their actions, ensuring that they're deserving of their jobs.

Creative Direction: Very few people mentioned this, but it's extremely important. The manager should be the designer for the whole world, not the developers. It's his job to make sure that the world is consistent and balanced.

Too many playerworlds suffer from creative stagnation. Nothing new, nothing interesting. That's why places like Oasis are always so enticing - they offer the Graalian something that they've never seen before.

Development: Managers should develop, or at least have the ability to develop. A good knowledge of scripting is extremely valuable for two reasons:

1) It makes planning easier - you know what is possible and what isn't. You can place your ideas firmly on the edge of feasibility, where they belong.
2) You can build the core systems, and know for sure that they're operating how you want them to. These are things that are going to come into effect wherever the player is, and also attract new players to the server (a nice combat system is more intriguing than a nice level or whatever).

Public Relations: Representing the playerworld, both on the forums and ingame. Putting it in a good light (hopefully where it belongs). Making sure the players are happy, and addressing their problems.

Note that I haven't mentioned anything even related to attitude. Why? Because it doesn't matter. If you do all of the above, you're a good manager. If you don't, you're not. Attitude can contribute, but it can't substitute.