I would get them canvassing during the time you dont have work for them or maybe if you can - buy a round first to start them off, then canvass in the extra, just get a small round that will pay wages to start and then any work you canvass will start to be your profit, as for stopping them running off, you need incentive's to keep them earning well, performance related bonuses, bonuses for showing up on time etc, if you treat them well they shouldnt want to nick your work, only other thing is too keep a good relation with the customers, dont them be the only ones to deal with custies or they will soon forget you and they can take your work then easy, as much of a pain as it is, perhaps you could collect his work once a week and while there just check "everything ok, no complaints? if ever you need anything ring me bla bla" That will make it very difficult for them to pinch your work!