Arsenal now maintains their winning streak to six games and they have been fired up to the 3rd position in the table, above Tottenham on goals difference.
France global Lacazette joined Arsenal a year ago for a then-club record fee but Aubameyang set a new mark of £56 million ($73 million) when he joined from Borussia Dortmund in January.
Aubameyang quickly emerged as a force following his January move from Borussia Dortmund, but the Gabon striker's arrival pushed Lacazette into a bit-part role.
The 27-year-old Welshman, who has scored the victor in two FA Cup finals during his decade in north London and capped off a fine move in the weekend win at Fulham with his first goal of the season, wants to be on similar money to Arsenal's most recent big-name buys.
"He's very young, it's his first season here at this level but he was playing in Italy which is a very hard competition also", Emery revealed, as quoted by the club's official website.
And Lacazette continued: "The team spirit is good, of course when you win it is better".
"But we played City today".
Although Emery has said he would like to keep Ramsey, who is Arsenal's longest serving player after joining in 2008, Arsenal are keen to keep their wage bill under control and look willing to allow the Welshman to leave on a free transfer, just as Jack Wilshere did during the close season.
Slavisa Jokanovic's side are the only Premier League team yet to keep a clean sheet this season - but the Whites boss is not about to park the bus in an attempt to turn things around. We got one, which is fine.