NFL coaches don't like to look ahead, so 49ers head coach Jim Harbaugh isn't about to look past Sunday's game against the Arizona Cardinals.The Cardinals, after all, have the same 3-2 record as the Niners, and the teams are tied for second behind the 4-1 Seahawks in the NFC West. And, just like San Francisco, Arizona has won two straight games to rebound from a disappointing 1-2 start.But if the 49ers can handle the Cardinals Sunday at Candlestick Park – and oddsmakers have made them 10½-point favorites – they could set up a string of victories. After a tough schedule to start the season against already-established teams or teams that were expected to improve, in the Packers, Seahawks, Colts, Rams and Texans – the 49ers now have the Cardinals, Titans, Jaguars and Panthers (plus a bye week) – before having to travel to New Orleans on Nov. 17 to face a Saints team that's off to a 5-0 start.If the 49ers -- who regrouped after a loss to the Colts to focus again on establishing a solid ground attack – can go undefeated over this stretch of games in which they'll likely be favorites each week – they'd find themselves 7-2 with plenty of momentum...