Aston Villa got off to a good start under Remi Garde by drawing against Manchester City.
The Claret and Blues are currently five points away from safety, with Garde under pressure to turn their results around immediately.
And, with a tough run of fixtures coming up, Souness feels that the club could be cut adrift, before Garde has got to grips with the task at hand.
“You have to sort the backline out,” Souness said. “They look like conceding goals every time they cross the white line.
“They have it all on. It’s a brave move to appoint a foreign manager, given their predicament.
“If you accept whether it’s a player or a manager coming in there will be a settling in period – it means that it will take time for him to have a look at what he’s got and what he doesn’t have. But he could end up losing so many points in that period, that it could cost them before he gets a grasp on what he needs.”
Despite Souness’ skepticism, Garde actually made a good impression in his first match in the Villa dugout.
The French manager guided them to a point against Manchester City, and Villa’s performance in the tie was impressive.
The Midlands outfit looked solid and organised throughout, but they will have to build on that performance in the coming weeks.
Villa have matches against the likes of Everton, Southampton and Arsenal on the horizon, meaning their fixture list has not been welcoming to Garde.