The club called up Joonas Ronnberg, Jim Jorgensen, Christoffer Bjorklund and Russ Moyer to check out potential availability.
None were able to respond to the call-to-arms, so Steelers are continuing the hunt for a new blueliner before Friday's 11pm deadline.
The club has identified two players of particular interest but rate it no better than 50-50 in terms of a successful conclusion.
At this moment, recruitment is a task performed in the first instance by backroom management staff, rather than coach Tom Barrasso. That will change if Barrasso leaves at the end of the season - the new coach will take the lead, according to owner Tony Smith.
He explained The Star: "Tom will give us his call on a player that we source; we try to find suitable players for him. Dave Simms, Shaun (Smith) Mike O'Connor and myself are all working in a combined effort.
"There is a network of agents who provide names and we take them to Tom.
"Asked if the next coach would be specifically charged with recruiting Smith replied: "Yes, 100 per cent. We have to have active recruitment and to a high standard.
"Other clubs are already doing this for next season and we cannot miss out.
"We have a good support network but we will need a guy at the top who will bring his own take.
"In football, the top clubs spend a long time actively scouting, it's not like that in the Elite League," he said.
"We are sent names by agents, look at the stats, sometimes get all excited - but then again it's the agents' job to give you these and the videos you get to see are only the good bits!"
He said of Barrasso: "I am not throwing Tom under the bus, he is black and white in what he tells us about players. He is not a recruiter but he made the call quickly on Ben O'Connor and Anthony DeLuca, when we found out they had become available.
"But Tom does not come from a background where he leads the way in finding players."