Ozil, whose capture smashed the existing club transfer record, was a much-needed signing. Arsenal fans had grown impatient at the lack of activity over the summer, and the German is a big step toward changing what has been a negative atmosphere around the club.
Any club in the Premier League would benefit from a player of the Real Madrid star's quality, and Arsenal are no different. The addition of Ozil to a midfield that already contains the likes of Jack Wilshere and Santi Cazorla is a big step in the right direction.
However, is Ozil's capture enough to secure Arsenal a place in the Premier League's top four in such a competitive season? There is a big argument that it is not yet sufficient.
Arsenal fans' frustrations this summer were understandable. There are clear deficiencies within the squad, and while Ozil adds immensely to the club's quality, some of those issues remain unaddressed.
Should Olivier Giroud get injured, for example, Arsenal have a problem. Neither Lukas Podolski nor Theo Walcott has regularly played as a central striker for some time, while young French forward Yaya Sanogo remains inexperienced and unproven.
Given the Gunners' ambitions to return to challenging for titles once more, as well as to challenge in the latter stages of the Champions League, it is simply not good enough.
Defensive midfield is another area supporters and pundits alike have identified as in need of improvement. Mathieu Flamini is a decent addition on a free transfer, but much more was needed.
With Arsenal's status and ambitions, they needed a top-class addition to protect their frail defensive line. Flamini is a good player, but he is not a player who is going to take them to an elite level.
Luiz Gustavo, Marouane Fellaini or Etienne Capoue, all of whom have moved this summer, would have undoubtedly improved the side considerably more. Arsenal, though, have been hesitant too often in the market. Indeed, the swiftness with which they acted to capture Ozil made a welcome change.
They are a very good side when confident, as the victory over Tottenham this past weekend demonstrated. Injuries and the strains of a long season, though, are likely to take their toll once more.
The Manchester sides, Tottenham and Chelsea all have a depth to their squads that Arsenal continue to lack. Over the course of the season, it could cost the Gunners dearly.
The capture of Ozil will see the club avoid criticism in the media for the time being, but the situation will quickly change if injury should strike. It is, undoubtedly, a step in the right direction, but more could and should have been done.