You mean converted combo forwards, who started off as primarily small forwards, but are now almost strictly power forwards, like M. Williams, T. Young and J. Johnson? I didn't include Green, because he can also play small ball center.
I don't know if you include Aldridge in this scenario, but if so, he wouldn't be a great fit next to those types because they'd have no roll man on offense and a lack of rebounding and shot blocking. Even if, as expected, he ages into primarily playing center, he still needs to be paired with a power forward who has some elements more typically associated with centers. The third big should be more of the type you're describing, with their role dependant on match-up, like Splitter and Diaw.
Primarily playing one big lineups, on a full time basis, only make sense if you have a big similar to Duncan, that does traditional center things at a high level or if you have James or Green.