A lot of it is also expectation control. I am always mentally ready for a programmer to bail out on a project. New folks who try outsourcing often give up after their first or second failed attempt. There's no secret - even after years of doing this, I pick the wrong guy every now and then.

Few days ago I made a full-time offer to a php programmer in India after extensive interviewing. Finally, I sent the contract. He went missing since getting the contract. Not a huge surprise - he probably used it to get a better offer at another company. I just went down the list to the next candidates.