Alot, if theres one thing you never count on a pitcher for, its injuries. ESPECIALLY with someone with as many warning labels as Z. And about the control being easy to fix, tell that to Victor Zambrano, and to an extent, Kerry Wood. Z goes all out on every pitch, does it with mechanics no one calls pretty, puts it on weight easily, and has back problems. Again alot of guys look like horses, but there are guys who do that for a while and then break down in their early 30' (Colon). Put it this way, if Z was on someone else, and was becoming a FA, would you not build your negative arguments around all those risks I just listed?