Wenger resigned after two consecutive seasons out of the Champions League and the club hierarchy hired Emery with the target of getting the club back to Europe's top club competition as soon as possible.
With Arsenal currently in fourth place and in the Europa League quarter-finals, Hartson has said that Emery has done a great job despite following an icon such as Wenger.
Emery exceeding all post-Wenger expectations at Arsenal - Hartson: https://t.co/81PgHnI9za— Arsenal News (@ArsenalNewsApp) March 15, 2019
Hartson told BT Sport: “Well they’re in the quarter-final of the Europa League, where they’ve got an opportunity, if they do win it, of getting in the Champions League.
“Who would have thought it at the start of the season with replacing Arsene Wenger?