He was the Gunners' first-choice striker - and supporters were delighted to have finally secured the services of a prolific 26-year-old who netted 37 goals in 45 matches for Lyon last season.
Many football fans were left asking themselves the same question following the Gabon international's move to the Emirates Stadium: can Lacazette and Aubameyang really play in the same starting line-up together?
Alexandre Lacazette came on in Arsenal's 1-0 loss to Spurs. They don't produce, they don't come up with the goods.
"It's up to Lacazette to say, 'I'm here to fight - I don't care who has come in'".
"To break into the top teams they need to break the wage structure, the way the game has gone, it's a business now", he added.
The score was goalless at half time and Ferdinand was full of praise for the Gunners' defensive strategy.
Curling mixte : une autre victoire pour Kaitlyn Lawes et John Morris
Kaitlyn a vraiment donné le ton avec de bons lancers et nous n'avons pas cessé d'appliquer la pression. Dans leur premier duel, les Canadiens détenaient une avance de 6-2 après cinq bouts.
Mkhitaryan finished the game with three goals created; Aubameyang with a debut strike; and Ozil with yet another 90-minute example of how smooth he can be in facilitating success for others.
During BT Sport's match coverage Ferdinand said: "That's the risk you take when you sign two big players in the summer and then in January".
Over the years, Aubameyang has morphed into a fully fledged No. 9 and classical penalty-box poacher, hanging on the shoulder of defenders, utilising his searing speed in behind and developing a knack for finding space in tight areas.
Where has Aubameyang's arrival left Lacazette?There were far more detrimental and worrying shortcomings that led to this humiliation.
The Gunners lost even more ground on the sides above them after losing 1-0 in this afternoon's north London derby. But while both have played wide in the past, neither are suited to the position in 2018.
At least there's the Europa League.
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