Wednesday, October 12, 2011

Process, not technology, the answer to scoring misses

Another Grand Final scoring blunder and the football community has to, yet again, endure the nonsense proposition that technology must be used to assist umpires in scoring decisions.

 

Let’s start by getting the situation straight on the Wellingham “goal”. This was not a goal umpiring error per se. It was an error of process in that the goal umpire was too influenced by a field umpire.

 

The goal umpire was in the correct position to make a decision. The field umpire was not. We see, week in and week out, goal umpires relying on boundary umpires to assist with set shot scoring decisions. The goal umpire looks to the boundary umpire who signals whether the ball passed inside or outside the behind post. This works because the boundary umpire is standing right at the behind post.

 

And yet, the AFL umpiring department has field umpires — not standing at the posts and not at the goal line — directing goal umpires. Incredible.

 

Two years ago, the Tom Hawkins “goal” was a different matter. Hawkins’ snapshot didn’t allow any time for boundary umpires to be in position at the behind posts. The goal umpire was attempting to make ground to get into position to see the ball and, understandably, did not see the deflection from the goal post. Had the broadcaster not had a camera trained at the incident from the angle they did, it’s quite possible that only a few fans at the game would have been aware that the ball had hit the post.

 

In both instances then, detecting an error relied very heavily on there being a camera with a view from an appropriate angle. So, what technology are we going to employ? Instant replay from the broadcaster. And with every angle covered? Of course not.

 

And if that replay is inconclusive? Current practice is that the lesser score option is awarded. Is that more right than the current decision-making process?

 

There are three simple points to a solution to this “problem”.

  1. Goal umpire’s decisions are the prime scoring decision unless some other umpire is 100% certain that the decision is incorrect.
  2. Employ four goal umpires per game.
  3. Australian rules football has uncertainties built in — the shape of the ball not the least of them. There is no absolutely certain process for making these decisions, so let’s accept that the current error rate of something less than one tenth of one percent is a pretty damned good result.

There is some justification for goal line cameras, but even these offer less than conclusive evidence given the speed of the ball and the often slight touches players may get on the ball.

 

As we’ve noted on many occasions, the negatives of video decision-assist outweigh any positives to an extraordinary degree.

  • In the event of a “behind” decision, the defending team loses the advantage of a quick kick out while a video review is conducted.
  • The game’s rhythm is upset by the break for video review.
  • Video review doesn’t guarantee certainty.

2 comments:

Kick2Kick said...

Agree video replys are not the answer.

I remember at a 'country week' when I was injured I was forced to goal umpire and there was one decision where the field umpire over rode my decision. Adding more goal umpires wont help, it will just add to the confusion as it does now with three to four people talking...

Do you think the issue is also that the goal umpire only stands between the goal posts? Were before they used to go between all four posts.

Murph said...

I think you're missing the implications of two goal umpires in each goal, K2K.

For set shots, there would be an official standing at each of the four posts. Any discussion is then limited to each deciding which side of their post the ball passed. They don't have to move, so they have a clear and uncomplicated view.

For shots in general play, having two goal umpires in each goal cuts the amount of ground they need to cover in half. Again, their role is centred around determining which side of their goal post the ball has passed or, in the event of a poor kick, determining whether the ball has passed inside or outside of the behind post.

I'm not sure how you can write that this wouldn't help.

In relation to your second comment, it's only for set shots that the boundary umpires cover the behind posts. For shots in general play, the goalie still has to be able to cover all four posts.

The issue, if there IS an issue, is that goal umpires can make errors when running full pelt to cover a swinging ball. If there are two goal umpires at each end, the problem is reduced by a great deal more than 50%.

Thanks for stopping by. Glad to see you got your site problems sorted.

Process, not technology, the answer to scoring misses

Another Grand Final scoring blunder and the football community has to, yet again, endure the nonsense proposition that technology must be used to assist umpires in scoring decisions.

 

Let’s start by getting the situation straight on the Wellingham “goal”. This was not a goal umpiring error per se. It was an error of process in that the goal umpire was too influenced by a field umpire.

 

The goal umpire was in the correct position to make a decision. The field umpire was not. We see, week in and week out, goal umpires relying on boundary umpires to assist with set shot scoring decisions. The goal umpire looks to the boundary umpire who signals whether the ball passed inside or outside the behind post. This works because the boundary umpire is standing right at the behind post.

 

And yet, the AFL umpiring department has field umpires — not standing at the posts and not at the goal line — directing goal umpires. Incredible.

 

Two years ago, the Tom Hawkins “goal” was a different matter. Hawkins’ snapshot didn’t allow any time for boundary umpires to be in position at the behind posts. The goal umpire was attempting to make ground to get into position to see the ball and, understandably, did not see the deflection from the goal post. Had the broadcaster not had a camera trained at the incident from the angle they did, it’s quite possible that only a few fans at the game would have been aware that the ball had hit the post.

 

In both instances then, detecting an error relied very heavily on there being a camera with a view from an appropriate angle. So, what technology are we going to employ? Instant replay from the broadcaster. And with every angle covered? Of course not.

 

And if that replay is inconclusive? Current practice is that the lesser score option is awarded. Is that more right than the current decision-making process?

 

There are three simple points to a solution to this “problem”.

  1. Goal umpire’s decisions are the prime scoring decision unless some other umpire is 100% certain that the decision is incorrect.
  2. Employ four goal umpires per game.
  3. Australian rules football has uncertainties built in — the shape of the ball not the least of them. There is no absolutely certain process for making these decisions, so let’s accept that the current error rate of something less than one tenth of one percent is a pretty damned good result.

There is some justification for goal line cameras, but even these offer less than conclusive evidence given the speed of the ball and the often slight touches players may get on the ball.

 

As we’ve noted on many occasions, the negatives of video decision-assist outweigh any positives to an extraordinary degree.

  • In the event of a “behind” decision, the defending team loses the advantage of a quick kick out while a video review is conducted.
  • The game’s rhythm is upset by the break for video review.
  • Video review doesn’t guarantee certainty.

2 comments:

Kick2Kick said...

Agree video replys are not the answer.

I remember at a 'country week' when I was injured I was forced to goal umpire and there was one decision where the field umpire over rode my decision. Adding more goal umpires wont help, it will just add to the confusion as it does now with three to four people talking...

Do you think the issue is also that the goal umpire only stands between the goal posts? Were before they used to go between all four posts.

Murph said...

I think you're missing the implications of two goal umpires in each goal, K2K.

For set shots, there would be an official standing at each of the four posts. Any discussion is then limited to each deciding which side of their post the ball passed. They don't have to move, so they have a clear and uncomplicated view.

For shots in general play, having two goal umpires in each goal cuts the amount of ground they need to cover in half. Again, their role is centred around determining which side of their goal post the ball has passed or, in the event of a poor kick, determining whether the ball has passed inside or outside of the behind post.

I'm not sure how you can write that this wouldn't help.

In relation to your second comment, it's only for set shots that the boundary umpires cover the behind posts. For shots in general play, the goalie still has to be able to cover all four posts.

The issue, if there IS an issue, is that goal umpires can make errors when running full pelt to cover a swinging ball. If there are two goal umpires at each end, the problem is reduced by a great deal more than 50%.

Thanks for stopping by. Glad to see you got your site problems sorted.