SANTA CLARA — The 49ers found some of their soul in their punch-in-the-mouth win over Atlanta.

Now comes the hard part with the Houston Texans up next Sunday at NRG Stadium.

Doing it again.

“I think when it comes to establishing your identity, you have to do that every week,” running back Christian McCaffrey said Wednesday. “It’s not something where you just have it and you’re good to go the rest of the year. It’s a mindset that has to happen all the time.”

Coach Kyle Shanahan set 40 rushing plays as the goal against the Falcons, which was ambitious considering the 49ers (5-2) had been struggling to run consistently They ran it 39 times for 174 yards and won 20-10.

The prime beneficiary was McCaffrey, who carried 24 times for 129 yards and two touchdowns and had seven receptions for 7

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