Carlos Zambrano allowed two home runs and five runs this evening in six innings. He walked five. His ERA after four starts is a high altitude 7.77. At this point, I have to assume the Cubs are having second thoughts about completing the contract extension. He's now allowed six homer on the season, after giving up just 21 and 20 the previous two seasons. No control and long balls; that's not a pitcher worth tens of millions of dollars.