"I think he's a very good player but Kieran can turn you into an immediate premiership threat."
Foran has made only three appearances for the Warriors but his impact has been immediate, having steered the side to back-to-back wins over the Gold Coast and Parramatta before Saturday's 20-8 defeat to Canberra.
The 26-year-old's direct playing style and strong organising ability has helped reduce Johnson's responsibilities and allowed the halfback to play more of his natural running game.
Should the Warriors fail in their bid to keep Foran in Auckland, Kent believes Widdop possesses a similar skill-set that would nicely complement Johnson's razzle dazzle.
"If they don't get him (Foran), I think he's shown in his performances already this year that Shaun Johnson needs help around him," he said.
"He's a player who can come in, straighten the attack a little bit and also organise the team a little bit.
"Shaun Johnson, I think, when he gets a little bit weighted down by having to organise the team as well as just play (with) his own brilliance, I think he struggles a little bit with that.
"So I think that someone like Gareth Widdop, who was unwanted six weeks ago, is suddenly in popular demand now because he's shown what he can do with St George Illawarra.
"So I'd look at someone like him. You've got to find someone who can just basically steer you around the park and keep you honest. That's what the Warriors need more than anything, someone to just keep them in the game for the entire 80 minutes."
Foran is understood to have four clubs - Newcastle, Melbourne, Canterbury and Cronulla - interested in luring him away from the Warriors.
Johnson is also believed to have a couple of Australian clubs keen on securing his services, but is expected to remain in Auckland.