Last weekend, it was revealed the Crows had approached umpires' manager Jeff Gieschen in relation to a number of non-decisions involving forward Kurt Tippett between rounds three and six.
The 203cm goalkicker has received seven free-kicks and given away 12, seven of which were against Port Adelaide in round four, in five games this season.
The club's concerns appeared to be vindicated to an extent against Melbourne last weekend, with three apparent free-kicks not paid to the 24-year-old.
However, Craig revealed he had a "bigger-picture concern" than Tippett's treatment, saying holding and blocking infringements were common in particular areas of the ground.
"I think there are certain hotspots on the ground now," Craig said on Friday.
"For example, around the stoppages and they've been there for a while with guys like Chris Judd, Brendon Goddard, Marc Murphy, Cyril Rioli and the whole Geelong midfield … there's a lot of holding, blocking and [players] not going for the ball in those [midfield] areas.
"I think there are similar hotspots now with key forwards of teams.
"All I'm saying is that rather than trying to umpire the whole thing, why wouldn't you try and hone in on some hotspots when you know what the hotspots are and try and eradicate those?"
Tippett has been accused of staging for free-kicks in the past.
Craig denied his key forward played for free-kicks and questioned whether umpires were getting in the right positions to make the calls.
"There are some free-kicks that, maybe, Kurt shouldn't have got, but there were also some pretty obvious ones that were missed and sometimes I don't know how they were missed," he said.
"I'm not being critical of the umpires because we all make mistakes, but talking to Jeff Gieschen [about a few non-decisions] he's sort of saying, 'with that one, you're right [it should've been a free-kick]'.
"There was one on the weekend [against Melbourne] where Kurt was going for the ball and he had two defenders just mauling him.
"We've got three umpires and they go to either end of the ground and one in the middle. I'm just questioning in general, whether it's Tippett, Lance Franklin, Nick Riewoldt or Jack Riewoldt doesn't worry me, but why aren't we seeing it [the infringement]?
"Did it cost us the game against Melbourne? Clearly not and that would be a long bow to draw (considering the 96-point margin).
"I'm just saying I'd be focusing in on those hotspots if I were an umpire."
Craig isn't outspoken when it comes to umpiring and the League's governing bodies, but his opinion carries weight.
In 2009, he was credited with coming up the concept for the deliberate rushed-behind rule.
Katrina Gill covers Adelaide news for afl.com.au. Follow her on Twitter: @AFL_KatrinaGill
