The Swans are happy to accept third round pick 47 for the former premiership captain but Bulldogs' coach Rodney Eade said the Dogs also wanted a late selection in the draft.
On Monday afternoon Sydney Swans coach Paul Roos told the waiting media: "We said to them today we'd take [the third round pick, No.47], but we haven't heard back from them, so the ball is in their court."
In reply, Eade said the Dogs would need the Swans to offer another pick and threatened to let Hall slip through to the NAB AFL Pre-Season Draft if they didn't.
"We think it needs to be a little bit more, so there's a bit of work to do," he said.
"Maybe, if we got one of their other picks back for one of the ones that they're not going to use. We're still prepared to go to the draft, so it's not an issue."
Despite initial mixed messages from the Western Bulldogs, it appears Carlton spearhead Brendan Fevola is unlikely to head to Whitten Oval.
Eade said he "wouldn't have thought" the Dogs would pursue Fevola over the next four days, while football operations manager James Fantasia said the out-of-favour Blue didn't fit in with their list plans.
"Carlton has asked us about Fevola, and we've said no," Fantasia said. "It's not the direction our club is looking to move in."
However, Fantasia refused to completely rule out Fevola, given the continuing stalemate over Hall. "In football, you never say never. As the week unfolds, it will take shape from that point of view," Fantasia said.
Fantasia had hoped to seal the Hall deal on Monday, but the Dogs left the opening day no closer to an agreement with the Swans.
"Not at this stage, but we did have some positive discussions today," he said. "We're hopeful over the next couple of days we might be able to get to a point where both clubs are able to agree.
"At the moment, they've come out with a fairly high expectation on a draft pick, and we're probably a bit further back.
"We're just hoping we might be able to find some middle ground, and if we can find that middle ground, I daresay that it will happen."
Fantasia said the Bulldogs hadn't made much movement on Monday, but had been surprised by the number of enquires made about their players. "Equally, we went to the table too and enquired about a number of players," he said.
"It was good there were some deals done today, and it goes to show that some clubs have certainly done some work before today.
"I'm confident there will be a few more movements before the end of the week.
"The big one for us is, we've always said we'd love to get Barry (Hall) over the line. That's our priority at the moment.
"Outside of that, there are a couple of players that have been asked about and we'll sit back as a group and make some decisions on that over the next couple of days."
Fantasia said he expected out-of-contract defender Brian Lake to remain at the Bulldogs.
"It's obvious from our point of view that he's an untouchable player," he said. "We haven't been able to get pen on paper as yet, but that's something which we're hopeful of being able to complete before the week is out. Stay tuned."
He said a number of clubs were interested in Andrejs Everitt but reiterated that the 20-year-old was a required player.
The 2009 AFL exchange period runs from October 5-9. No trades are official until paperwork has been accepted by the AFL and formally recognised after 2pm on Friday, October 9
