Tom is a good midfielder, and could be a gun one day. I just don't want to see him at centre bounces.Disagree on Simpkin and Parker, and George hasnt put the body of work together that Powell has.
Our best midfield for me is LDU, Sheezel, Powell, with Simpkin and Parker rotating through for a smaller amount of CBAs. Phillips as well.
Mckercher needs to stay outside and Duursma isnt best 22.
No where near as deep as you make it out to be at the moment.
Here are Hawthorn's CBA's from last year.

I mention them because they had a clear approach. Obvious Day missing early affected things, but basically they chose their best four mid centre square rotation and stuck with it till it worked - this always takes time. For the first half of the year it was a shambles as the players learnt to play with other. Then suddenly it clicked.
We need Xerri, LDU, Wardlaw, Sheezel, Simpkin and Parker to spend as much time working together as possible. Whenever we take out Harry to give time to Powell or Phillips, we are hurting both our performance and team's development. It's poor coaching, and if we are serious about improving, it needs to stop.