CHICAGO Any stats-steeped baseball fan will tell you: If youwant to evaluate a pitcher, look at his win total last. It is an archaic, flawed way to measure performance. It is ahighly dependent variable. Put less algebraically, it can be acrapshoot. But try telling it to a 21-year-old pitcher who is staring at a0-6 record. That is what resides next to Madison Bumgarner's namein the box score after the Giants' 11-4 loss to the ChicagoCubs on a blustery Friday afternoon at Wrigley Field.