Arsenal’s CEO Ivan Gazidis believes that Arsenal’s biggest challenge will be finding a new manager when Arsene Wenger finally departs the club. Wenger is currently the longest-serving manager in England, having joined the North London club in September 1996. The Frenchman, who signed a new three-year deal in May, steered the Gunners to the Premier League title in 1997-98, 2001-02 and 2003-04. "The biggest challenge we're going to face as a club is that transition from Arsene to the next manager," Gazidis said. "We have a giant who's managing us. Arsene has put the club in a great, great position."