The prospect of 'old-school footy' returning to the modern game has convinced Adelaide key forward Josh Jenkins to embrace the introduction of set starting positions.

Jenkins liked what he saw when the rules were used in the Crows' under-23 trial against Port Adelaide last Saturday.

Six players from each side must be inside the 50m arc at each centre bounce, including a forward and a defender in the goal square.

"The amount of ball that got into one-on-ones from centre bounces, and even from secondary plays from centre bounce, the ball would spill out and there would be a secondary contest to a three-on-three or a four-on-four," Jenkins said.

"I think that's really going to benefit the game."

Jenkins had been won over after initially believing the rule change didn't go far enough.

"I was a sceptic at the start, I thought it was a stop-gap measure," he said.

"I thought it should've been either all stoppages or no stoppages, but I think it really looks good."

The 108kg, 200cm Jenkins should be one of the main beneficiaries if the rules open up space in the forward 50.

"The (forwards) who win one-on-ones inside 50 are going to be worth their weight in gold," said Jenkins, who kicked 46 goals last season.

"Conversely, the (defenders), like Daniel Talia and Alex Rance, who can stop forwards from winning one-on-ones and rebound the ball are going to be worth their weight as well.

"I think it's going to add that little bit of old-school footy to the modern game."

Jenkins was on Wednesday added to the Crows' expanded seven-man leadership group for the first time.

The 30-year-old booted 46 goals for the Crows last year and finished third in the club's best and fairest.

The Crows had a disappointing season, going from Grand Finallists in 2017 to finishing 12^th last year under a huge injury toll.

But with an almost fully-fit list to choose from, Jenkins believes the Crows can again challenge for the flag.

"I think a lot of people acknowledge that you line the teams up on paper and our squad is super talented and can go with anyone," he said.

"You don't play the games on paper, we understand that, but we take a lot of benefit and enthusiasm from the fact we know we've got plenty of firepower, plenty of talent and we've got the ability to play really good football."

The Crows open their JLT Community Series against Port Adelaide in Port Pirie on Saturday.