Ok, so we have survived another year of lockdowns, a down year for the mighty Tigers and we emerge at the end of SHocking's experiment with our wonderful game.
What are we to make of all of this?
Clearly there have been changes in the way the game is being played, you hear this from supporters, coaches, the idiots in the footy media et al.
The comments on the game seem to focus on it becoming more a game of control rather than a game of territory. How can this be measured, especially given we simply don't have access to advanced stats?
When they introduced the new rules the AFL put up a nice little interview between Barrett and SHocking - nice to see the AFL exposing their work to the searing judgement of . . . one of their own employees
. The interview and article can be found
here.
So, what was the AFL's claims for the new rules?
SHocking claimed a few things, but was deliberately vague, he said:
"The main reason (for the 75 interchange cap) is to try and open up congestion around the ground. There are a lot of high pressure game styles which have kicked in, the pressure factors have increased, and have been on the increase for five years now, so our belief is we need to put a little bit of fatigue back into the system, and to recalibrate that part of the game and hopefully have the result of opening up the game,"
So, the interchange cap is to encourage fatigue which will somehow open up the game. I have absolutely no idea where they get this idea from. Opening up the game has the implied goal of increasing scoring, yet, when they first introduced an interchange cap for 2014 the average score per team per game went under 90 for the first time in 44 years (1970) and has been decreasing every year, to the extent that 2021 has an average score below 80, the lowest since 1967. Rather than open up the game the interchange cap has turned it into more of a slog fest.
Of the ban on lateral movement by the player on the mark, Hocking said: "We think that will open up the game, it will open up the 45 (degree angle) pass option, which is the best real estate.
While it is noticeable that the stand rule has opened up the 45degree angle kick, these have tended to be short kicks to a free player. What we have is a less contested game. Is that a good thing? Well, that is a matter of opinion. Although, by the end of the H&A games the number of uncontested marks per game has gone back to the level of 2019, and lower than the mid 2000s, this is in the context of lower possession numbers and disposal numbers. The weak trend of higher disposal numbers and higher possessions has been turned around for one year but we'll have to see what happens. The same goes for contested possessions as a percentage of total possessions, it has gone back to 2017 levels but will this trend continue? The number of disposals and the number of possessions are trending down at the moment - here's a couple of graphs:
Disposal stats simply go back further, beyond 1965 there is very little, but it is clear disposal numbers have been on a long term rise but have now turned a corner.
"My role in that as custodian of it is to make sure the right things are introduced to open the game back up, and to have more Dustin Martin moments that he did in the Grand Final, where he was able to find space, and we would like to create more of those – that's my role and I'm committed to finding that space."
There is a real irony in this statement. What Dusty has been able to do is to break out of congestion - look at the very highlights they put up in this article - goals scored by breaking from congestion, not goals scored by finding space. Dusty was not in space, he created space in congestion. This is very different to what the new rules hope to achieve which is to allow players to get the ball under less pressure in space.
A few more stats (well graphs) to see if we can work out what is happening.
Contested marks is one are where there has been debate. The number of marks per game is fairly stable as is the proportion of contested marks as a proportion of total marks - it sits at around 12% but seems very variable between games, some games have over 200 uncontested marks and others closer to 140, this makes the average a less useful measure although 198 games should smooth that out a bit. One thing to note is that the number of uncontested marks per game dropped from about 167 to 159 over the last 3 or so rounds, no idea why.
Stoppages is another thing we hear a lot about, they want less stoppages. Can't find stoppage stats but, assuming that the number of hit outs per stoppage is relatively stable, it should be a reasonable proxy measure. Hit outs per game are back to mid 2000s levels:
One thing we don't hear a lot about, although maybe we should if congestion is meant to be an issue, is tackles per game. This rose a lot between 1999 and 2010 but has stabilised and is now reducing, but not back to earlier levels:
Of course, they don't say this, but the AFL clearly want higher scores. As alluded to above, they have failed. Stats for scores of course go right back to 1897, but I'm still working on those stats, here is what we see back to 1965:
The clear downward trend continues.
I have also heard that the AFL is lauding closer games and it will take a while but I am also looking to see if I can graph the average margin per game, the percentage of close games (margin under 6 points) and blow outs (margin more than 59 points). We'll see, I suspect these will be very variable and it will be interesting if there are actually any trends.
Discuss!
NOTE: all the above excludes 2020 for obvious reasons.
DS