Gnostic, I can't agree with your prescriptions here.
1. Robbie's problem as a selector isn't about ignoring proven, recent form. He does pick the best players (who has he left out?). He just sometimes picks them out of position. Richard Brown is a good Test 7 or bench player, not a starting 8. And Matt Giteau is a great ball runner/tackler, not a playmaker. Brown and Giteau should be in the team, but in different roles that use their strengths. Happily this has now happened.
2. The Bench issue is a furphy, IMO. There's no urgency to use the bench if the replacements aren't much chop.
3. Interesting point. I wonder if Hugh McMeniman's record of injury has to do with him piling on 10kgs to play in the second row?? But as you say, we don't seem to be making this mistake anymore - KB (Kurtley Beale)'s weight loss being a case in point.
4. I have to say, I agree with this. Tuqiri never seemed to be much of a team leader - he was immature. I mean, pushing teammates onfield, sleeping with teenagers, late night drinking sessions? He was a kid.
The discipline seems a lot better now, although I'd love to see some clear moves toward building pride in the Wallaby jersey, its history and traditions. Steve Waugh used to do it in cricket, Rod MacQueen took his charges to French battlefields, Jake White got Nelson Mandela to address the side. It makes a significant difference.