It remains to be seen whether the Gunners back line has enough quality to keep the run going but with Aubameyang and Lacazette looking good playing in a front two, there is no doubt that Arsenal will be able to score plenty of goals. Both players scored a goal and had an assist off the bench - the first time in Premier League history two subs have achieved that feat in the same game for the same team.
Ramsey also provided a superb through ball to set up Aubameyang's second - and Arsenal's fifth.
Ramsey is free to talk to foreign clubs in January as his current Arsenal deal expires next summer.More news: Tesla shares jump on Model 3 numbers, Musk settlement
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It has come as a no surprise that this Ramsey's shaky Arsenal situation has caught the eyes Liverpool and Manchester United and with Wales global will be available for free in the transfer market, it could be a bumper opportunity for the Merseyside and Manchester club to grab the skilful midfielder at the cost of nothing. The England worldwide made the switch from the Emirates Stadium to Anfield previous year in what turned out to be an excellent move for the player, and former team-mate Aaron Ramsey could be set to tread the same path. We will enjoy it, we are working well and we want to continue like this. Having won six games in a row, did they?
Arsenal have now recorded their sixth consecutive win in the Premiership after back-to-back defeats to Manchester City and Chelsea at the start of the season.
City's normal penalty taker, Sergio Aguero, had already been substituted when Virgil van Dyke clattered into Leroy Sane in what the defender later admitted was "not a smart move".