Here is the opening to my Saturday column about Tim Lincecum and his new haircut: SAN FRANCISCO Friday. Giants Media Day. Tim Lincecum walks in with a new look. Call it a new head. Those long locks that used to hang down his back like laundry — forget them. Gone. Outta here. His hair is short and neatly combed with a sharp part on the left side. He’s wearing black-rimmed glasses. I’m thinking he looks like someone I ought to… Read More »