In 2010, Smith was replaced as the starter by former coach Mike Singletary with Troy Smith for a key December game that decided San Francisco's playoff fate that season. The next week, Alex Smith began a string of 28 consecutive starts for the 49ers that ended after his concussion.
Smith had a 21-6-1 record in those games and played a significant role in San Francisco's rise back to prominence last year and continued success this season. Smith resurrected his career under Harbaugh, who took over as San Francisco's coach in 2011.
"Those (other seasons) are all in the past," Smith said. "For this one, you're in it right now. It's such a great team, such a great group of guys in this locker room. There's something special going on. It's a tough pill to swallow, for sure."
Smith said he was prepared for Harbaugh's decision and knew it was a possibility "just based off the last couple of weeks the way things have gone." Smith got the news during a conversation with Harbaugh earlier this week, when the coach explained why he decided to go in a different direction.
Harbaugh left open the possibility he could go back to Smith at any time.
"Alex is a class act all the way," Harbaugh said. "He'll prepare as if he is the starter. And that's what we would expect. And be ready to go in and play and contribute to this football team. We've got two quarterbacks that we feel great about as the starting quarterback. Anything's a possibility. I would assume nothing, or rule out anything."
Smith said he felt no resentment toward Harbaugh, nor did he try to talk the coach out of the change at quarterback.
"At this point, what's talk going to do?" Smith said. "I feel like he made up his mind, and he's not a guy that didn't put thought into it already. I don't get to make those decisions. That's what he gets paid to do. I play football. So that's what I'm going to continue to do. Continue to get ready, and then make the most of my next opportunity."
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