Heritier Lumumba's move from Collingwood to Melbourne could be dependent on the draft pick the Demons secure from Geelong for Mitch Clark.
When the Demons retained their second-round pick at the conclusion of the father-son bidding process, they appeared to have enough currency to get a deal done.
However AFL.com.au understands that although Collingwood are keen on extracting pick No.23 for the resilient 27-year-old who finished fourth in the Magpies' best and fairest on Friday night, the Demons are not prepared to hand that pick over.
The Demons now hold pick No.2, No.3, pick No.23 and pick 59 after using pick No.39 to secure father-son prospect Billy Stretch.
Although Melbourne used pick No.23 last trade period to secure Bernie Vince from Adelaide, if it can throw pick No.33 into the mix after concluding a deal with Geelong for Clark, there will be more room to manoeuvre.
But with both clubs committed to reaching a deal in good faith, a deal is expected without too much angst.
Greater Western Sydney is favoured to secure Brisbane Lions defender Joel Patfull after he indicated last week he was keen to continue his career in Sydney.
The dual best and fairest at the Lions could command a second-round selection, with the two clubs potentially swapping selections down the order sweeten the deal.
The Lions' main priority is to secure Collingwood's Dayne Beams but they remain some distance from producing an offer that will satisfy the Magpies.
Although the Lions have put pick No.5 on the table, they refuse to entertain the thought of letting any of Pearce Hanley, Dayne Zorko, James Aish or Sam Mayes be part of the deal.
The Magpies may soon be juggling several potential trades, having made an offer to unsigned North Melbourne midfielder Levi Greenwood.
Greenwood, who finished third in the Kangaroos' best and fairest this year, is weighing up offers from the Kangaroos, the Magpies and the Western Bulldogs while on leave in Bali.
Greater Western Sydney ruckman Jonathan Giles attracted interest among the clubs that gathered at Etihad Stadium on Monday, most notably from Essendon and, to a lesser extent, Adelaide.
The Bombers will be occupied in the short term by finalising a trade with Port Adelaide for Patrick Ryder.
Essendon list manager Adrian Dodoro said on Monday afternoon there had been little movement in the club's discussions with Port Adelaide, so the Bombers might not be in a position to make a serious play for Giles until next week.
The Bombers knocked back the Power's first-round pick (No.17 overall) and raised a number of Port Adelaide's best young players in talks but the Power have been firm in not parting with any of their stars.
Both clubs remain aware of the unique nature of Ryder's request to leave, with the possibility he could seek to activate a breach-of-contract clause and become a delisted free agent if a deal is not reached during the trade period.
Those circumstances appear to be influencing what Port Adelaide views as a fair trade.
However the Bombers remain steadfast in their view on what is appropriate compensation.
"The ball is back in their court," Essendon recruiting manager Adrian Dodoro said on Monday. "We want apples for apples, not apples for a bag of peanuts."
If Ryder departs Tullamarine, Giles would appeal to Essendon as a ready-made sidekick for Tom Bellchambers.
Similarly, the Giant would help bolster the Crows' ruck division, which was largely carried by Sam Jacobs in 2014.
Crow Jason Porplyzia is one of 2014's few remaining free agents, with the 29-year-old forward's future unlikely to be determined until after the trade period when the Crows' new coach has had a chance to properly assess the list.
Adelaide also rejected suggestions Patrick Dangerfield was tradeable, with list manager David Noble describing the idea as "ridiculous". He did concede there was some interest in midfielder Jarryd Lyons, who is yet to re-sign with the club.
Noble said the Crows had spoken to Lyons' management and expected to put a contract offer to him this week.
