Also, in terms of a "succession plan" for the chapter, you only have 3 years to give to your chapter.
Sophomore Year = Year 1 in GLO as a New Member
Junior Year = Year 2 in GLO = Become an officer
Senior Year = Year 3 in GLO = Be President, or another officer
That doesn't seem like a lot of time to learn the inner machinations of how to run a chaper effectively.