The former Rangers midfielder, who had two separate spells at Ibrox, was not pleased with King’s recent statement about the managerial situation at the Gers.
King said in a statement on the club’s official website this week that Rangers will make the best possible managerial appointment in the summer and also praised manager Graeme Murty.
Murty is in charge of the Scottish giants at the moment and will manage the team until the end of the season.
With Rangers playing Old Firm rivals Celtic at Hampden Park in the semi-finals of the Scottish Cup this weekend, the timing of King’s comments came as a surprise.
Rangers legend Ferguson has criticised King for his statement, and wrote in The Daily Record: “He’s left a cloud hanging over that dressing room at a crucial stage in the season.
"I realise he’s got season tickets to sell but the Rangers fans will be battering down the doors to renew again anyway because it’s in their DNA.
“So I’m not sure this sales pitch was necessary and it will have caused a bit of unrest inside the dressing room. I don’t care what anyone says, players talk about these kind of things.
“They worry how it might affect their own futures because they are only human. Players nearing the end of contracts or returning to a parent club will feel as if they have been left in limbo.”
While King’s statement was laudable given that he wanted to communicate to the Rangers fans the club’s plan, perhaps he could have waited for a week or two.
The most important thing now for Rangers is the game against Celtic at Hampden Park, and both manager Murty and the players need to fully focused on that.