I really cannot see Boras/Strausburg turning down a 15 million dollar deal.
I mean there have to be people around Strausburg (parents, friends) with enough common sense to know that if he signs for 15 mil he is set for life even if he never pitches in the bigs and if he is everything he is supposed to be he will get the 2016 version of CC Sabathia type money.
Besides if he holds out, what do you suppose the upside is? I can't see him being offered 15 this year and suddenly he is offered 50 next year by tearing up an independent league. On the other hand the downside is pretty huge if he gets hurt.