If you just looking at getting started in expediting, you might want to consider looking into a local courier company. I started by working for a courier company (as an O/O) that did long haul runs. All of the loads where out and back, but it gave me some kind of idea about getting into expediting with one of the "big" companies.
I ran with the courier business for about 2 1/2 years, ran almost 100,000 miles a year, and yes, i made money. Not lots, but I did make money. If your just getting started, make sure you look into all of your options before getting in too deep.