Grading the 49ers: Third down offense

Before:  Vernon Davis, Michael Crabtree, Delanie Walker, Kyle Williams and Kendall Hunter. Grade: F Why: Double-cover Davis and the Niners were dead on third down. Crabtree was rarely open enough for Alex Smith’s taste, Kendall Hunter didn’t have reliable hands and Smith rarely even considered throwing to Delanie Walker. Now: Subtract Walker, Williams and Hunter. Add Mario Manningham, Randy Moss, LaMichael James and A.J. Jenkins. Grade: B+ Why: If teams…

April 29, 2012