Yep our midfield depth is shaping up really nicely. You can add Jansen, Keays and Mathieson as young players who will push for selection in the reserves and players like Lester and Bewick who will make sure the players you listed play at their best otherwise they will replace them as Lester and Bewick are too good for NEAFL level(If only they could transfer their NEAFL form to the AFL on a consistent basis!).
I think Lester is on borrowed time. Bewick too. Both would really need to add a bow or two to be there in 2017.