Andy Carroll exposed a weakness in Arsenal's defence at the weekend, and in the process highlighted how the Gunners' first choice striker has also wilted.
Arsenal boss Arsene Wenger has placed in trust in Olivier Giroud throughout much of the campaign, with mixed results, only dropping him to the bench over the last month.
The Frenchman has scored 12 Premier League goals this season, short of the tally supporters expect from a top striker aiming to fire the club towards the title.
Arsenal's challenge to win the trophy took a dent with their draw at West Ham, with Giroud a second half substitute, and heading a late chance wide.
Carroll's hat-trick took him to seven league goals for the season, and he can now boast of a superior minutes per goal record than Giroud, scoring every 137 minutes compared to 164.
The West Ham striker's ratio was not looking so great before his weekend hat-trick, and now he is even being talked about as a potential candidate for a role with England at Euro 2016.
Carroll is a dangerous player as Arsenal found out at the weekend, but a limited one too, who is hardly scoring at a prolific rate.
Yet if Arsenal's key striker, as he likes to be thought of, cannot score at a more lethal rate than he can, then it is little wonder their title bid has wilted.