The Gunners have lost three of their last five games, including Sunday’s 3-1 defeat to Manchester City at the Etihad Stadium which saw them drop off the top-five spot.
The Gabon international has failed to make significant impact from the wings this season under manager Unai Emery, scoring three of his 18 goals from the position.
However, the 37-year-old believes the former Borussia Dortmund striker can be more productive and have more chances of scoring if handed the centre-forward role week in, week out.
“It’s gonna be very hard for Aubameyang because he’s a number nine,” Ameobi said on BBC Radio 5 Live’s Football Daily podcast.
“He wants to be on the end like Aguero and when he’s pushed to the side, pushed to the wing, I don’t think he’s as comfortable out there as maybe [Alexandre] Lacazette.
“So it’s very hard for Arsenal to maintain any type of pressure when you’re playing a certain number nine out on the wing.”
Aubameyang will hope to help his side back to winning ways when they travel to the John Smith's Stadium to take on Huddersfield Town on Saturday.