Every workplace has its share of good guys and bad, solo artists and team players. To get ahead--or even just survive--you need to know them all: the good eggs who can become your allies, and the bad apples to avoid (or occasionally placate). <A HREF="http://www.bnet.com/2403-13068_23-94033.html">Here's a handy guide to the 10 most common types</A> of office politicians, with tips on how to manage them.