The already-formidable Cats' forward line was last week boosted by the five-goal performance of elevated rookie James Podsiadly who, along with Cameron Mooney and Tom Hawkins, formed a tall forward rotation that looks set to stretch the Blues' depleted back line.
Paul Bower remains sidelined with a groin injury, while regular tall defender Bret Thornton was banished to the VFL last week and has not been named.
Jarrad Waite played mostly in attack in his first three games back from a knee reconstruction before accompanying Thornton back to the VFL, but appears the most likely option to help combat Geelong's tall timber.
"[Podsiadly] does give us another headache and the debate of Waite coming in or not will be thrashed around, but him kicking five goals does give us a few headaches," Ratten said from Visy Park on Friday.
"That will be talked about … whether we go down the path of Waite playing back to get assigned to one of those players or maybe it's another opportunity for us to win the ball in the midfield knowing that Geelong has so many possessions between the arcs.
"Do you flirt with the idea of changing a team that's won?"
Waite was one of three additions, along with Brock McLean and Richard Hadley, to Carlton's extended squad for Monday's clash.
The Blues defeated the Cats just weeks before they lifted the 2009 premiership cup, but Ratten wasn't putting too much store in that victory.
"I think you can look back and say, 'we've had success against this great team once' … but 2010 is a new season," he said.
"Their form is red-hot and they're a great team. When you talk about A-grade players, they've got a team full of them.
"It's a great challenge for our midfield. When you look through their midfield and the players that they have in there and the depth that they have, it's very hard for any team to match up on."
