Arsenal rose to third in the Premier League for the first time since February 2017 with a 2-0 win over Newcastle on Monday.
Emery feels the key to the Gunners’ rise has been consistency, but Carragher suggests the strike partnership between Lacazette and Aubameyang has been rather more important.
The former scored against Newcastle to bring his season tally to 15 goals and 11 assists, compared to Aubameyang’s 22 goals and six assists.
Arsenal look considerably more threatening when both play, and with five of their remaining seven games away from home, Carragher feels they could be crucial for a side struggling in defence.
“It’s not easy to get two strikers in the team nowadays,” he told Sky Sports.
“The problem with the away form is most managers will think they can’t play two strikers in a tough away game but I think he has to play two strikers because they can’t keep a clean sheet.
“He’s probably played both at times, one of them at times but there’s not been one clean sheet which is an unbelievable stat.
“As a manager you’ve got to go into these games thinking there’s not much chance of us keeping a clean sheet so we’re going to have to outscore teams.
“We’re going to have to score two at least to win the game so we need these two strikers on the pitch. Unai Emery has really got to go for it in these next few weeks away from home.”