Strikers that play as pure goalscorers are not in fashion at the moment.
A player who doesn't offer much to the build up play is seen as an unaffordable luxury in a footballing world where most teams play only one up front.
Arsenal however, should buck this so called 'fashionable' thinking and look to sign Javier Hernandez in January.
Firstly, Arsenal need a forward anyway. Currently, the only natural backup to Olivier Giroud is the wayward Dane Nickolas Bendtner. Walcott and Podolski could play through the middle at a pinch but both are more naturally attacking wingers rather than strikers.
With the Gunners looking to sustain a title challenge, prevail over Bayern Munich in the Champions League and enjoy an FA Cup run another striker is a necessity.
Why though should it be Javier Hernandez? The answer to this lies in the rest of the Arsenal team.
Wenger has assembled a midfield that is possibly the most technically proficient at keeping the ball in the division.
They don't need a striker to help them maintain possession. Furthermore, although they have improved over the last calender year Arsenal still have a tendency to keep the ball for the sake of it.
Part of the reason for this is that the Gunners often fail to have a consistent threat in the box. Instead of playing off the shoulder of the last man Giroud tends to drop a yard or two off the central defenders seeking to involve himself in play.
Most of the time though this move off the central defenders is not needed as the Arsenal midfield is already combining to move the ball into dangerous areas and create chances.
What Giroud's move off the forwards does do though is prevent him from applying the finishing touch to Arsenal's passing. Against West Ham crosses would be delivered into a box that a goalscoring forward would have been scoring from.
Instead, because Giroud dropped off the defensive line he found himself a yard and a half away from scoring.
Signing an out an out predator like Hernandez would solve this problem. He would score bagfuls of goals at the Emirates.
Plus with Man Utd not playing Hernandez regularly they could use the funds raised from his sale to bring in the urgent additions needed elsewhere.
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