One of our problems is that our experienced players are mostly mid-to-late 30s rather than late 20s/early 30s (Steeves the exception) , and our breakthrough prospects are kids.
We've a small cluster of players between those two categories - Lyons, Brown, Waddell, Quinn, Machado, Hester - but not really any demonstrative leaders in the middle of the park if the old boys are injured/suspended/rested.
I'd agree that we need one or two central players who can put their foot on the ball and try to keep some calm in the middle of the park; an alternative up front to Hester and Hermiston; a new right back; cover for left back; and another one or two centre backs to cover for Dillon, Quinn and Waddell.