I for one would have to say zito is underpaid if anything. One of the crazier stats I have ever seen is zito's record with run production. Of course he didn't help things by going to the giants who have problems scoring. If anyone can look at these numbers and say he is overrated they are crazy. Think of the record he would have with decent run support. Here are some stats coming into this year. Taken from ny daily news.

Known as a pitcher who will give his team every chance to win each of his starts, he logged a 15-1 personal record in 23 starts with run support of two or more in 2006. In fact, Zito has fashioned a 29-3 ledger (.906) in 44 starts with support of two or more runs during the 2005-06 seasons. In 108 career starts with at least four runs of support, he has produced an 85-4 mark (.955).