Arsenal have scored in seven consecutive matches in all competitions, a run dating to the back-to-back losses to Schalke and Norwich in October. In their last four matches, the Gunners have scored 12 times, an average of three per contest.
That's a nice number, and the unit as a whole appears to be coming together.
Losing Robin van Persie to Manchester United obviously served as a devastating blow to Arsenal's attack. As the season has progressed, however, his replacements—note the plural form—have steadily improved.
As of Wednesday, Lukas Podolski and Olivier Giroud have combined for eight goals and four assists in the Premier League and four goals and five assists in the Champions League (stats via WhoScored.com here and here).
Van Persie has tallied eight goals and three assists in the Premier League and three goals and no assists in the Champions League (stats via WhoScored.com here).
Podolski scored an impressive, vaguely RvP-esque volley Wednesday, and Giroud assisted both of Arsenal's goals. Taken together, that's an encouraging contribution.
Those comparisons reflect well on Podolski and Giroud, who admittedly have taken time to settle into Arsenal's team. Van Persie's loss was indeed devastating, but as the season progresses, Arsenal are becoming a team with multiple potent threats on offense.