1.) Revamp your MMOG in such a way as to make a lot of people dislike it.

2.) Decide to gain back lost customers by stealing features from other popular Massive games.

3.) ???

4.) Profit!

In a nutshell the Expertise System will allow players the ability to differentiate their characters from others of the same class by allowing specialization in certain aspects related to that class. As a character gains levels, they will earn Expertise Points that may be spent in a number of different trees. Each class will have access to at least three different trees. Some examples of these are a Class Specific tree, a Weapon Specialization tree and a Galactic Warfare tree.