What if you can strengthen another weakness, particularly as you will still remain strong in the area that is currently a strength anyway?
Not a smart move from where I stand. My post was clear enough that history shows this would be turning a strength into a weakness. Carlton may have 3 ruckmen of AFL quality, but it's been very rare indeed that they've all been available at one point in time. Why spread ourselves thin now, just a handful of years after the club busted it's arse to get decent ruckmen at the club after being bereft of them for nigh on a decade.
Nope! Now is not the time. At least first go recruit a young rookie ruck and see how he goes in his first season. At least first get through a season when one of these guys is actually forced to play most of the season in the VFL through lack of opportunity. At least first let the situation settle and get a feel for the new rule and which of our ruckmen it's going to suit best. Shunting off one of them now wouldn't be a good move IMO.