That entire argument goes out the window when you look at the fact that Matsuzaka has NO experience in the Majors at all. I mean yes, everyone expects him to be at elats a number 3 starter, and better. However, as everyone in this league has seen, it is not garunteed at all. Matsuzaka can be great but also bomb like Irabu or others.
I can totally see Boras' argument that he wants a clause for less years under control of teh Red Sox, but asking for ace money and shorter years is very over the top. A totally fair deal would involve the clause but also a salary udner 15 mill. That way Matsuzaka can prove himself and then get an even bigger amount of money.
That's my Sox perspective.
From Boras' perspective, he's done a wonderful job hiding any signs that could give the Sox leverage in any way. Especially in Matsuzaka, if he is pressuring him to get it done and playing in the US this year. And until that happens he has no reason to lower his demands. This is what he's amde for, and this is what he will do, even if it may be very uncooperative in hammering out a deal (he ahsn't even given a counter offer).