Moving up in levels - skills

There are tons of posts regarding bankroll management requirements to move up in levels.

How about skills required to move up in levels? Let's say for argument's sake that 25NL and below is largely about ABC poker. You're bankrolled now for a shot at 50NL - what skills should you have to take that shot, or should be developing as you take that shot? Now you're bankrolled for 100NL - what skills should you have/be developing to take that shot? Etc.

What I have in mind is sort of a "course syllabus" to move up the ranks from microstakes to small stakes (200NL).

There are probably posts that do this already - please let me know where to find them if I missed them.

duh - reading icemonkey9's 2K post now, this is what I was looking for... Combine this w c9's required reading list stickied in the HA forum, and we've got a really solid structure for discussing skills required...