Vernon Davis puts a real threat in deep threat
This is my Wednesday column on Vernon Davis. SANTA CLARA – Vernon Davis has the 49ers in a helpless position, like a turtle trapped on its back. Davis can stay away and let the turtle squirm – miss mini-camps and training camp, hurt the offense and make the 49ers look bad – or he can flip the turtle over. It’s up to Davis. He’s watching the turtle flail its little…