AFL.com.au have put up an interesting article on the basis of a 'good' team:
http://www.afl.com.au/news/2013-08-07/look-to-the-future
The basic run down, along with my thoughts:
Two tall defenders (195cm to 198cm): Closing speed and spoils
Trengove fills one of these spots, though closing speed with him is a worry. Carlile doesn't have the height or speed off the mark, but has shown he can hold his own in one-on-ones.
One defender who can play tall or small: Mobile, chasing, tackling
Jonas has proved he can do this already. Could do with a little more agility though.
Three running defenders: Uncontested marks, handball receives, possession overlap
Pittard, O'Shea seem to have this covered, with Colquhoun, Heath, and Stevenson ready to come in. O'Shea and Heath already showing some great intercept marking, and Pittard has shown some great run-and-carry.
Midfield (one in-and-under ball winner): Hard-ball gets, stoppage work
Wines developing nicely for this one, needs another few years of development but already can compete well in this role. Has the added bonus of being a decent mark around the ground.
Midfield game breaker: Inside 50s, most work done moving forward, some rebound work
They specifically highlighted Boak as an example of this, being top 10 for inside 50s. Broady is doing well for the midfielder rebounding off half-back, and we all know that Hammer on his day can be a major threat pushing forward from centre and kicking goals.
Run-with player: Shut down play-makers, while also being able to set up attack
Cornes at the moment, not so much setting up attacking runs, but we've got Moorey for this. Moore still has a bit of work to do in terms of workrate if we want to make him into a full shutdown player, but his attacking run is certainly there.
Wingers (183cm to 190cm): Cover lots of ground, set up around stoppages, block opposition corridors
Ebert. Hard running, reasonably tall, can take marks and move forward, while also being great defensively to lock down opposition ball movement. If our other running defenders work out well, Pittard and O'Shea could rotate through here also.
Ruckman: Tap ruck, demand an opponent around the ground
Lobbe and Reddo showing a lot in terms of tap ruck work, not really doing enough to demand attention around the ground. The article points out that if the ruck isn't good enough around the ground, the opposition ruckman can feel safe floating back and plugging the hole in attack, so we really need to develop them both to start taking more marks around the ground.
Two key tall post players: Combination of strengths, marking on lead, contested marking
Schulz and Butcher have this covered in theory, with Schulz a brilliant mark on the lead, and Butcher showing some glimpses of decent contested marking. Obviously Butch has a lot of development left, and hopefully Shaw comes along well enough that the two of them will provide that contested marking (or at least stopping opposition marks) from long bombs into attack.
Goal-assist half-forwards: Hard-running, push up the ground, good decision making and skills
Gray, Monfries, Wingard, with Youngy still waiting in the background. Got this area covered really well.
Crumbing player: Speed, agility, clean hands, defensive pressure
Neade is probably the only genuine crumber in this regard, though Gray comes close. Could use another one on our list though.
Basically, nothing we didn't really know about our list already: We need another tall KPD, Carlile does OK but is not tall enough or quick enough off the mark to shutdown those gun key forwards, seems more suited for taking the resting ruck/third tall. Lobbe and Redden are showing enough, but need more around the ground from them, so it's probably wise to target another athletic ruckman, pressure for spots is always good.
Another tall forward would be great, but what team outside of Sydney and WCE doesn't need one more?
Good to see that we've got most of the basics pretty well covered though.