49ers Blog and Q&A: Harbaugh says Lattimore’s medical exam yields good news via mattbarrows – Step one for the 49ers’ rookie class: A battery of tests and examinations up the road at Stanford Hospital. For two members of the class, second-round pick Tank Carradine and fourth rounder Marcus Lattimore, the results were promising, Jim Harbaugh said Friday. “Everything looks good structurally with all the guys...