In my Tuesday column I ask what happens to Barry Zito if Ryan Vogelsong keeps on winning, keeps on being a surprising pitcher, keeps on being a good fifth starter. This is an important question because it makes us — and the Giants — consider where Zito belongs and if he belongs at all. Some people think Zito is an adequate fifth starter — even though he actually goes fourth in the rotation. Do you think he is? To read my column on Vogelsong and Zito, and the implications about Zito’s future click here.