Roos said the number of rule and interpretation changes were causing confusion and it was making it difficult to work out why some free kicks were being paid.
The Demons’ coach said a weekly email from the umpires would help teams communicate to players what was happening and coach them accordingly.
"If there is a weekly email from the umpires saying 'look we feel the umpires are umpiring really well [on] this, this and this but we feel like the 50-metre penalty or hands in the back rule [needs focus]," Roos said on Tuesday morning.
"Let's not call it ‘the rule of the week’ but say the umpires are refocusing on something."
Still flummoxed by the decision awarded against Demons' full-back Lynden Dunn on Saturday night that enabled Western Bulldogs' forward Stewart Crameri to kick a crucial goal in the last quarter, Roos didn't hide his frustration at how the game was being umpired.
He did qualify his comments by emphasising umpiring was a tough job and he accepted mistakes would be made.
Ironically, Melbourne averages more free kicks (18.9 per game) than any other team in the competition although it does encounter more stoppages than most. The Western Bulldogs average more frees against than any other team, with Melbourne sixth on that table.
Roos also paid tribute to four-time premiership coach Tom Hafey, who died yesterday.
Hafey coached at Richmond, Collingwood, the Sydney Swans and Geelong.
Roos said he would mention the significance of Hafey to his players before Melbourne played Richmond on Saturday night, a match in which the Tigers are sure to come out firing given Hafey coached them to four flags.
Roos said he recalled watching Hafey coach the Sydney Swans in the ’80s and the famous coach's longevity during a semi-professional era underlined his love for the game.
"When you actually coach you realise how demanding it is,” Roos said.
“(People like Hafey) put in an enormous amount of time around their family and work and that sort of thing. When you look at his record you think ‘that is an enormous commitment to football and those clubs in general'," he said.
