The Saints are keen to bring in another midfielder during the trade period to compliment last year's haul.

St Kilda brought in Brad Hill from Fremantle, Zak Jones from Sydney, Dan Butler for nothing from the Tigers and Dougal Howard and Paddy Ryder from Port Adelaide.

And yet they still have some salary cap room and CEO Matt Finnis has said the club will look to bring a midfielder to Moorabbin.

"We certainly don't think that we're finished in terms of where our list needs to get to. We think there's tremendous growth from within...but I feel like we probably need some more quality and depth through the midfield," Finnis toldย AFL.com.au'sย Footy Feedย podcast.

"We saw Ryan Byrnes debut earlier this year, Jack Bytel [will debut against Geelong on Monday], but with 'Hanners' (Dan Hannebery) being injured and Luke Dunstan being injured this year, I think we could use some more depth there.

"That would be an area of the field we'd be open to looking to try attracting another quality player, but they've got to be at the right age where they can continue to grow and to develop with our list over coming years as well.

"We're certainly very much open to that and it will all play out towards the back end of the year."

The Saints had an interest in Adelaide's Brad Crouch last year who contemplated a move, and the previous year put in a bid for Collingwood star Jordan De Goey.

Jack Steele is out of contract at season's end and the Saints are desperate to lock him away.

Steele has been one of St Kilda's best players this year, averaging nearly 22 disposals and six tackles in a career-best season.

The Saints are confident of locking away Steele sooner rather than later.

"He's been terrific, Jack. I think if you'd asked anyone towards the back end of last year you'd say he was a reliable stopper who can run both ways," Finnis said.

"But now I think we're seeing a player who, when given the opportunity to get his own ball and demonstrate his own class, has really stepped up and embraced that. I'm just thrilled for him.

"He's out of contract and he's obviously a big priority for us and right from the start of the year Jack knew that we were keen to extend him out.

"We've had a hiatus on being able to do that through the AFL rules but now that's finished and we can sign our players again, I expect we'll hopefully have something concluded there in the not too distant future."