A carrier who brokers his own, direct customers freight isn’t the problem (provided of course that he has the proper licensing and bond to do so legally), the problem lies with carriers who accept freight from a broker and then rebooked that freight with another carrier. I know that the respectable, professional carriers, many of whom appear on this site regularly, would not knowingly participate in any type of double broker scheme. If they accepted a shipment from a broker and then discovered that they didn’t have the capacity to move it, they would immediately notify the broker and have an honest and open discussion about what options are available. We all know that problems can occur, trucks break, drivers get sick, etc., etc.. , however it is always the best business practice to advise the broker who gave you the freight of any changes and let them make the final decision about who ultimately hauls the load.