The Emirates outfit have been playing new signing Per Mertesacker and Laurent Koscielny at the heart of their defence this season, but with vice-captain Thomas Vermaelen, Sebastien Squillaci and Johan Djourou all vying for a place, Wenger has strength in depth in the centre back position.
“The balance is vital,” Wenger told Arsenal Player.
“Koscielny and Vermaelen can play together and Mertesacker can play with Vermaelen and Koscielny.
“It gives us a bit of an opportunity to rotate a bit when needed and people are tired.
“Ideally, Vermaelen will play on the left (of central defence). But Koscielny can play on the left as well so we have a good potential and balance there.
“I think that all the three can play at any moment, and we still have Djourou and Squillaci as well.
“People wanted us to buy a centre-back so much and then suddenly you realise we have plenty,” he concluded.
Arsenal have had a revival in form over the last six weeks and are now only three points adrift of fourth place.
The Gunners take on West Brom at home on Saturday, and will look to continue their strong run of form.
By Gareth McKnight