Microsoft

The best reasons to work at Microsoft are job security and the ability to move around within the company. Generally, as long as you're in a position for at least three years, you'll see some advancement in terms of your level, but only to a point. Staying somewhere too long is a common issue and can be worse than moving on too quickly.

The health benefits are also excellent.

Large, bureaucratic machine. Many passive-aggressive people who are likely to not tell you if the work you're doing is going to lead to a dead end until you get really close to that dead end, and who are not willing to spend any time helping others get up-to-speed in areas they have expertise in.

Find one or more ways to empower people at all levels, and judge all levels of management by how well they do this for the people below them.

Start putting more effort into employee development, both in terms of skills and in terms of the direction of their careers.