When a guy's on a steep learning curve, it's acceptable to throw out the first part of the record if that helps determine whether he should stay or not. That means battling SSS, so the eyeball test has to factor in, as others have said. In the case of Hicks, the record just jumps out at me that the first three weeks should be thrown out for current evaluation; the first two weeks he was getting himself out, and the third week he was collecting walks at an unsustainable rate because no one was throwing him strikes after the first pitch. I wouldn't set a seasonal benchmark, .500 or whatever, by a certain date. Instead, if he looks like he's at least above replacement, keep him. We can live with below average stats from a CFer with growth potential, in a rebuilding year. By contrast, this approach works the opposite way with Florimon, unless the last two games in Boston are the start of a better trend.