You would have to say that there really are very few 'Elite" tier centres in the whole league currently. Manu is on a bit of an island, you'd maybe put someone like Val Holmes in there but he really lacked consistency this year.
And you'd have to assume that the lack is centres is directly related to the salary scaling of spine positions and as a result the likes of Latrell Mitchell, Stephen Critchon and Hamiso Fidow taking more money to play FB even if they aren't nearly as effective in that role.