Are Carlton tuff enough to be considerd a premiership contender in 2011?

They are one class below Geelong and Collingwood. Why? Because the lack consistency and with a great bunch of players like Murphy, Judd, Gibbs, Waite, Walker, Carrazo, and what not, they are equal to Geelong and Collingwood in terms of quality players - BUT, they lack consistency and aerial prowess.