This is a nerd move on my behalf but considering the interest in Cockatoo's solitary game from the last 1.3 years I decided to break down his possessions from the highlights video.
I'll oversimplify by evaluating the outcome of three general match situations:
1. Opposition has the ball
2. Neutral ball
3. Team in-possession
My coding will zone in on whether the player:
1 - retains team possession (0); downgrades a team possession to neutral ball (-1); downgrades a team possession to a turnover / opposition ball (-2)...
2 - wins a neutral ball (+1); maintains a neutral ball (0); loses a neutral ball to opposition (-1)...
3 - fails to defend when the opposition has the ball (0); upgrades an opposition ball to a neutral ball (+1); upgrades an opposition ball to a team in-possession ball (+2).
Feel free to take the number weightings as merely a very "loose" measure of a player's impact on changes in possession. In short, it doesn't punish poor defence (it only rewards good defence) and it doesn't reward good possessions (only punishes poor outcome of possessions), while neutral ball is more intuitive. Overall, any score in the positive will show a positive influence on changes in possession. With that said, let's see how Cockatoo influenced his team's changes in possession in the video:
First he gets a score in the "TOWARD" category (ball gets TO him) then he gets a score in the "FROM" category, when the ball leaves him.
1: TOWARD: Kicker not shown. Either retains team possession (0) or turns opposition kick into an in-possession (+2). FROM: His disposal is not shown (-).
2: TOWARDS: Handball receive, maintains (0). FROM: Handpasses cleanly back to running teammate, maintains (0).
3: TOWARDS: Smothers opposition kick to win possession for the team (+2). FROM: Handpasses cleanly to teammate, retains (0).
4. TOWARDS: Wins a neutral ball (+1). FROM: Handpasses cleanly to teammate, retains (0).
5. TOWARDS: Wins a neutral ball (+1). FROM: Kicks un-cleanly to teammate, retains (0).
6. TOWARDS: Wins a neutral ball (+1). FROM: Handpasses cleanly to teammate, retains (0).
7. TOWARDS: Handpass received, retains (0). FROM: Short forward kick to teammate, retains (0).
8. TOWARDS: Difficult handpass received, retains (0). FROM: Difficult handpass to teammate, 50/50 retains, vision cut short but I'll give him this one (0)
9. TOWARDS: In-possession contested mark, retains (0). FROM: Very safe backwards 15m kick, retains (0).
10. TOWARDS: Handball received under pressure, retains (0). FROM: Shot on goal drops short, luckily marked by teammate... his intention was a goal, the outcome was a 50/50 chance, so I'll call this (-1).
11. TOWARDS: Good leading mark, retains (0). FROM: Safe 15m sideways kick in attacking half, retains (0).
12. TOWARDS: Turns neutral centre bounce into a clearance (+1). FROM: Scores a point, retains (0).
13. TOWARDS: Turns neutral centre ball into a clearance (+1). FROM: Scores a goal, retains (0).
OVERALL SCORE: +6 or +8 influence on possession changes from 13 (of 20) disposals shown in the highlights video. The +2 difference depends on whether his first mark was an intercept mark or not.
Again, it's a loose measurement and I understand the limitations of the above data but considering the limited footage we have (which is not the entire match, which I assume recruiters have access to) it's just another perspective to consider in the wide range of factors necessary to evaluate a player's effectiveness and in projecting his likelihood of becoming a great AFL player. I'll leave it up to the readers to draw a conclusion.