BS. Most LS agents get their loads from other 3PL's. They dont have direct shipper for the most part because LS driver are O/O are you cant make them take a load. Lanstar agents are 98% spot freight brokers.
Not BS. In order for a broker to become a LS agent they must come with their own suppliers. It's not stopping them from brokering others frieght. But to be hired by LS that's is their requirements. Look it up.