Monday night's victory over Washington was a shot in the arm for the 49ers. After losing two straight games, the Niners were reeling, and issues with the team's struggling offense were troubling.So, for the San Francisco offense to finally play well in a 27-6 victory reportedly lightened the mood around the team this week as it gets set to play the 5-6 St. Louis Rams Sunday at Candlestick Park.However, that offensive production against the Redskins needs to continue. The 7-4 49ers, after all, still rank No. 32 – dead last – in the NFL team passing stats, averaging just 173.5 yards per game.But in that victory over Washington, there were a couple of good signs.First, quarterback Colin Kaepernick was again effective. After throwing for just 91 and 127 yards in back-to-back losses to the Panthers and Saints and posting quarterback ratings of just 42.0 and 72.9, Kaepernick was terrific vs. the Redskins, completing 15-of-24 throws for 235 yards, three TDs, no interceptions and a rating of 134.6.Plus, the 49ers' offense went back to a deeper passing game. In the previous game vs. the Saints, the 49ers' longest pass play was 17 yards. Against Washington, Kaepernick completed...