After shutout, Jim Harbaugh backs his backup quarterbacks

In two exhibition games, 49ers backup quarterbacks Blaine Gabbert, Josh Johnson and McLeod Bethel-Thompson have led San Francisco to zero points. But head coach Jim Harbaugh reportedly isn’t inclined to bring in other options at the position. “We got good quarterbacks,” Harbaugh said after the 49ers’ 34-0 home loss to Denver on Sunday, according to…