Collingwood coach Nathan Buckley has slammed the new third-man up rule as being too grey and believes rules should not be tinkered with for at least a three-year period.
There was another batch of curious stoppages on the weekend with the Western Bulldogs one team that opted not to offer up a ruckman at some ruck contests.
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The Dogs' tactics allowed Fremantle's Aaron Sandilands to go up uncontested and potentially get penalised for holding the ball if he got tackled immediately after deciding to grab the ball out of the ruck rather than hitting the ball.
The Magpies themselves were victims of a controversial free kick in round two when Richmond veteran Shaun Grigg sneakily caught direct opponent Brayden Maynard off guard by nominating as a ruckman at a stoppage before being blocked by Maynard, who didn't realise what had just happened, and cleverly earning a free kick that led to a crucial goal.
"We were disappointed obviously in round two with the Grigg decision and there was a bit of a shift after that with how the umpires were going to handle it," Buckley said.
"There was probably a little bit of grey area with that because coaches and clubs try to find the grey area to take advantage of, and that's always going to happen.
"And that probably, to me, points out why the rules need to be as black and white as they possibly can be so the adjudicators can be as consistent as they can and the people watching the game know exactly what's going on.
"I think there has been a little bit of grey area and I implore the laws of game (committee) just to keep taking that out of the game as often as they possibly can.
"I'm an advocate of putting the laws away for three years. If you think they're OK, don't make a change for three years."
Buckley himself was once on the laws of the game committee, but didn't envisage a return anytime soon.
"I had absolutely zero impact," Buckley quipped.