Gareth Southgate being favourite to succeed Roy Hodgson as England manager is "scary", says Harry Redknapp.
Hodgson resigned on Monday after England were knocked out of Euro 2016 in the last 16 by minnows Iceland.
But Redknapp said Southgate was only seen as a favourite for the job because he had won a "second-rate tournament" with England Under-21s in Toulon.
"Why should he get it in front of Steve Bruce and Sam Allardyce, who are proven managers?" asked the former QPR boss.
When it was suggested that Southgate knew the way the Football Association (FA) worked as well as the English "system", Redknapp responded: "Knows what system? The losing system? He knows the losing formula?
"I like Gareth Southgate, he's a great lad, but what's he done?"