Alright, I'm planning on doing the LA marathon in March. At my college, I'm in track for off season winter practice but I don't know if I should stay in it because 1- they most likely won't run long enough distances and 2- my coach doesn't want me getting in the way because I am behind (in terms of speed...).

So he gave me two options a few days ago: stay on the team as a manager, or drop the class.
So... does anybody think I'll benefit from dropping track in order to continue marathon training on my own?
I don't see the point in staying if you don't get to train. But if your coach allows you to train, while being a manager, it will be worth it because his experience may help if you have questions. Especially because you often injure yourself. Then again, you may always learn it slowly by doing it yourself.