Carlton are not the only club asking last year's Blues players to lift their standards.
Former Carlton forward Troy Menzel has been told at Adelaide that the running levels he was at last year at the Blues were well below what they would accept. He has been unable to join the midfield runners at the Crows and is staying with the forwards group and was told to improve his running times.
Chris Yarran has also had an interrupted arrival at Punt Road. Yarran arrived for pre-season at Richmond overweight and had to do extra sessions away from the main group to trim his weight. He then suffered a calf injury, which set back his pre-season training.
The moves come as it emerged Carlton have lifted their fitness standards under new coach Brendon Bolton, who has insisted that players must be under 12 per cent body fat or be put into the "Fat Club" to train separately and do extra work to reduce their weight. Players with high body fat would not be considered for selection.
The Crows' head of football, David Noble, has admitted that, as yet, Menzel was not up to the club's standards and could not train with the midfield group.
"When we spoke to him about coming over we made it pretty clear there is an amount of work that is required and Troy is still getting up to those standards," Noble said.
"He knows there is a base he has to get to and he is not there yet. He knows what the midfield band looks like and what the forwards looks like."
Former Carlton teammates Eddie Betts and Sam Jacobs were valuable for the Crows in understanding what Menzel's programs had been and for Menzel in coming to grips with the more demanding standards asked of him.
"There's a realisation in the AFL now that just having talent is not going to get the job done for you any more with the cap on rotations and change to subs. The level of physical demand is higher than ever," Noble said.
"If we can get him right at that level he could be a pretty special player. At the moment he is not in the midfield band but that does not mean he can't go in the midfield but the times he does go in there is limited. If you end up rolling through there it's for a short period of time.
"Our [other] midfielders have been at that level for four or five years so it is a significant step. Is he at that level now? No. Do we think he can get to that level? Yes."
Most Crows players are training now in the main group, with Andy Otten, Ricky Henderson and Matthew Jaensch all still recovering from surgery and another month to six weeks away.