Unai Emery's Arsenal squad "needs improving in all departments" after failure to qualify for the Champions League last term, according to Lee Dixon.
The Spanish head coach was drafted in to replace the legendary Arsene Wenger at Emirates Stadium last summer, having previously enjoyed successful spells at Paris Saint-Germain and Sevilla.
The first half of the season saw the Gunners embark on a 22-game unbeaten run across all competitions, but a dip in form after Christmas invited fresh criticism.
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Emery's side ended up finishing fifth in the Premier League and missed out on a place in next season's Champions League as a result.