Yes, Minson had a shocking day.
I don't know, because Liberatore is fit enough to play midfield all day. Just had a bad day today.
You keep parroting Cunnington's TOG as a reason he'll improve, yet ignore that the fact he is coming off a full preseason and still can't stay on the park without needing to rest up forward is a reason he's not as good as Liberatore.
TOG aside, they're just about dead even this year. Libba has slightly more possessions but Cunnington has hit the scoreboard. Then once you take into account TOG you'd have to say Cunnington's been better. It's not as if we're playing with 17 men during the extra 20 minutes he spends on the bench.
It makes perfect sense to use TOG and time spent resting forward to project to the future. Many of the games elite mids today were in a similar situation during the early part of their careers.