In back-to-back losses to the Seahawks and Colts, the 49ers hadn't been playing like the Niners of the past two seasons.They couldn't run the ball, couldn't stuff the run and couldn't produce big plays and big stops when they were needed.On Thursday night in St. Louis, however, the Niners got back to business just when it looked as if they were in danger of becoming irrelevant in the NFC West.San Francisco beat the Rams 35-11 to get back to .500 at 2-2 by pounding the football on the ground and stifling the St. Louis running game.Frank Gore carried the ball 20 times for 153 yards and a touchdown and San Francisco held the Rams to just 18 yards rushing to get its first win since a Week 1 victory over the Packers.And, the 49ers did it without injured All-Pro linebacker Patrick Willis and suspended linebacker Aldon Smith, and a short week of preparation after a home loss to Indianapolis.Going into the Thursday's game, it was billed as head coach Jim Harbaugh's first big test of his three-year NFL coaching career. Never before had his 49ers lost two in a row, and the 49ers' house seemed to be crumbling with injuries and adversity. Even veteran running back Gore last week expressed his...