Samardizija may have better stuff. True. But John Snyder is no example. Come on - the guy had WHIPS in the 1.4 and K rates in the 5 range. Santiago's are equivalent to Samardzija's, even if the stuff isn't.
I never saw the article to which you refer, but I saw the Heyman article that said the opposite. I also only saw one team on Garza hard - and Texas was all over him for sure (Texas' complete disinterest in Peavy perhaps can be explained, and this is purely speculation, by AJ and Peavy's non-relationship on the Sox). But I didn't see anyone else.