Geelong maybe as they go a more mobile 2nd forward which an Otten would be more comfortable against then Hartigan if we decide to go Talia v Hawkins (though I'd be more comfortable with a Hartigan v Hawkins matchup).
GWS it doesn't seeing their perchance for the very strong forwards.
Really though I'd like us to rotate both depending on matchups (similar to specialist pitchers in baseball) but equally I doubt AFL is ready for that.
What Im saying if Otten proves his worth against Geelong will it knock Harto off his perch, against GWS you would almost consder play Harto, Otten and Talia with the land of giants forward line they have where no one is under 200cm