Still 16, Callow starred for the Tasmania Devils in their maiden NAB League win last week, kicking five goals from 19 touches against a Northern Territory side featuring Maurice Rioli Jr. 

Eighteen-year-old defender Mansell also impressed last week, collecting 23 touches and a goal on debut to be one of the Devils' best. 

Notman stressed the difficulty of getting drafted to an AFL list, but said both players were approaching it in the right way.

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"Jackson has been playing as a key forward for us - for a big guy he's got an exceptional running capacity, he's got and a great set of hands and last week he got plenty of ball," Notman said.

"We've still got another 18 months to work with him, so it's pretty exciting to see what he might be able to get to come his actual draft age and draft time.

"I think he's got some good draftable attributes but 18 months is a long way away, and a lot can change in that time but from what I've seen he works really hard and is keen to listen and learn.

"He's still got some things we'd like to see him work on ... but he's doing all the right things at the moment which is great to see."

Mansell was nominated alongside cousin and top-10 pick Tarryn Thomas as a North Melbourne Next Generation Academy member ahead of last year's national draft, but missed out on being selected.  

Notman said versatility was key to Mansell's draft hopes in 2019.

"We've played him in a different role," Notman said.

"Everyone's seen him as a small defender - what we've been skilling him up in is as a player that can play as a small defensive forward and hit the scoreboard but also go through the midfield.

"Coming back as an over-ager, what we've got to do for each of the players is show a point of difference from what recruiters have seen in previous years. They know he can play as a small defender quite well - he's missed the draft last year so we need to get an extra string to his bow.

"His game last week was really really good and I think coupling that game with an opportunity he had to play a practice game with North Melbourne over the course of the pre-season, we're seeing some really good signs from him in a different role."

The Devils will play their first home game on Sunday in an 11.30am clash with Calder Cannons at Penguin.

Notman said the side was excited by the prospect of securing a second win in front of family and friends.

"It's great to see ... on the two interstate trips we've had on the days and nights before the game how well the boys come together as a collective.

"I hear a lot about North-South and all the rivalries and that side of things, but I think if people are worried about that it's really great to see the boys from wherever they are when they come together - it's one group, they're representing Tassie and it's great to see."