John Carver has questioned Fabricio Colocicni's leadership at Newcastle United.
Steve McClaren's side are back in the Premier League's relegation zone after yesterday's abject 5-1 surrender to Chelsea at Stamford Bridge.
And Carver, McClaren's predecessor as head coach, has delivered a critique of Coloccini, who succeeded Kevin Nolan as captain in the summer of 2011.
Carver told BBC Sport: "He's captain of the football club, but he's not like the old-fashioned captain, like a (Alan) Shearer, where he wore that armband and everybody knew who he was.
"Coloccini's not very vocal. He almost plays for himself, if I'm honest.
"It's something that the club will have to address.
"In times like now, when we're in trouble, we need some leaders."
Carver added that old-fashioned captains were now a "dying breed" in the English game.