The 49ers' run game is about quantity, not quality, 49ers offensive coordinator Jimmy Raye said. That's why he said it's difficult to draw any conclusions about the run game from the 49ers' loss to the Colts. In that game, Frank Gore had just 13 rushing attempts.

I asked Raye today about the spread offense and the fact that the run game has not been consistently successful this season. The 49ers are not going to become a "spread" team. But Raye said there might be more of those elements added to the team's offense as the season progresses.

Vince Young vs. Alex Smith.

That's the matchup Sunday at the 'Stick when the Titans visit to play the 49ers. Young and Smith are former high draft picks who lost their starting jobs for various reasons.

Now, both are trying to remake their careers with their original teams. Both made their first starts of the season a week ago.

Young, the No. 3 overall pick in the 2006 draft, lost his starting job to Kerry Collins. With mostly Collins at the controls, the Titans went 13-3 but lost in the first round of the playoffs.

But when Young was playing, the Titans have always been effective. In fact, Young's regular-season record as a starter is now 19-11 with last week's 30-13 victory over the Jaguars. (It didn't hurt matters that running back Chris Johnson gained 228 yards on 24 rushes).

This is Jeff Fisher's 16^th season as a head coach in the NFL. During that time the former 49ers assistant has faced San Francisco just three times.

"As I told our team this morning, this is a team that we know nothing about," Fisher said this morning a handful of Bay Area newspaper reporters during the weekly conference call with the opposing coach.

When I asked Mike Singletary yesterday why the 49ers did not employ the shotgun/spread in the second half (other than third-and-long situations) after having success with it at the end of the first half, I did not fully understand his answer.

He spoke in vague terms about the coaches not having exposure to the players and Alex Smith not having exposure to the spread offense.

Then, I spoke to Smith about it, and I think I have a better idea of what Singletary meant.

I was running late today, as I had to hustle home from Santa Clara after flying in this morning from Indianapolis to be there to pick up the birthday girl from school.