The 35-year-old striker is not yet ready to move back from the frontline, hoping to continue his impressive Premier League scoring record at Bournemouth.
The former Tottenham Hotspur striker has revealed his motivation: "to give something back to the younger players".
Speaking to The 'Offside Rule Exclusives', Defoe said: "It was always going to happen with Stevie G and Frank, because they're two natural leaders with unbelievable careers. They've both been captains, two people who still love the game.
"I was with Frank at West Ham from a young age. His upbringing, his dad from the East End, he's such a nice guy, Lamps - and he loves his football. I think with Frank he was always going to go on and be a manager.
"Stevie - the same. Liverpool lad, loves his football, he's a leader, and even when he was captain of England, he was vocal, but I'd say more vocal on the pitch. With some people, when you've got that presence you don't need to say much. He had that", he added.
Defoe is currently planning to take his coaching badges in the next couple of years, with the former Sunderland striker backing himself as a coach.
"Even now when we do a finishing session, I'll give my opinion, so naturally, I think I'd be good at coaching.
"Management is different, that's stress. That's when you start getting grey hairs, sleepless nights, but again it's a challenge and it is something I want to do at some point.
"I want to do my badges at some point this year. Just stay in the game and give something back to the younger players. That would be special for me", Defeo added.