As if there were any doubts, Alex Smith is the 49ers' starting quarterback heading into the regular season. Coach Jim Harbaugh formally made the announcement after San Francisco's 20-17 victory at San Diego in Thursday night's preseason finale. "I'm pretty sure we can say that," Harbaugh said. "He played with a very cool head and made good decisions. He played the way you want him to out there -- calm, cool, collected." Smith went 8 for 10 for 45 and wasn't sacked. Read more: http://espn.go.com/nfl/story/_/id/6922974/san-francisco-49ers-name-alex-smith-starting-qb