I had a guy I drafted #3 overall, great pitcher, unlikely to sign, so he said. I offered, waited a week he turned us down. I offered again, waited about 5 days, he turned us down, offered a 3rd time, waited about 3 days, he turned us down, offered a 4th time, waited about a week and he agreed to sign for a signing bonus around $11.2 mil. Since he was number 3, I'm thinking the top overall pick in a similar situation would ask for $12 mil, so budget appropriately. Anyways, the point being, if you have enough time, and he's willing to be reoffered (I think if they have an agent they will accept more offers, while if their mother represents them, your ability to negotiate will get shut down after the first attempt) you can always sign a guy. May take awhile, but it can be done.