The Tottenham manager is the overwhelming favourite to succeed Capello as England boss, with the Football Association still conducting the recruitment process. Speaking in an interview for the Radio Times with former Spurs chairman Lord Sugar, Redknapp talks about the pressures of management but also how easy it can be to upset people even while working as a pundit.
He said: "I did an England game at Wembley about two years ago and I said: 'I can't believe we're playing Steven Gerrard on the left wing'. Fabio got the needle with me because he thought I had criticised him and he didn't like it, but I was only just giving him my opinion."
Redknapp also recalled how he had upset England striker Darren Bent - who is set to miss Euro 2012 through injury - during their time together at Tottenham.
"You've got to be careful. I once said, 'My old woman could have scored that', about a goal Darren Bent missed," Redknapp recalled. "Bent then sulked, rang his agent, his agent rings the chairman and says he ain't happy and wants to leave. It was only the truth, wasn't it?"
Redknapp admitted to doubts about whether he could make the transition from club boss to international manager in a separate interview with French sports publication L'Equipe.
"I'm not sure," Redknapp said. "I have a very good job at Tottenham today and I like it. But I do not know. We will wait and see."
At 65 years old, Redknapp would be forgiven for wanting to give up his daily gruelling routine of driving 125 miles to Tottenham's training ground, but he says his life at the London club is blissful and admits the challenges facing an international manager are totally different to those at club level.
"When you have a club, you are looking for a striker and you take them. When you're (national) coach, you must do with the players you have in your country," he added.
"If you do not have a good scorer, you have none. And you almost never see the players. Two days all two months: it is very difficult."