1. They arent recreating the same team. Having one of your big 3 at the point guard position > at the shooting guard position. It throws out the whole aspect of PGs like Tony Parker,D Rose and Westbrook being able to sleep on defense because they have to guard shytty chalmers who shoots 13% from the court.
2. They didnt even win in 2010 so why would they need that D Wade
As long as Kyrie can take pressure of Lebron (which he can), Its up to the role players. Heat big 3 in 2010 > Heat big 3 in 2012/2013 but they had the role players that helped them win championships.
Dion Waiters alone is better than anyone outside the Heat big 3. Then Mike Miller, Trisitan Thompson ect
Bron is 30 with the most miles before that age ever. You can't expect him to remain at 2012 levels especially on defense for much longer. You can't ask him at 30-35 to do what he was doing from 25-29.
There is this little thing called cross matches. That said it's not like Kyrie is gonna do anything to stop them and all 3 of them are better than him.
They didn't win in 2010 because Lebron went . Of all those role players they have who is gonna stop opposing wings from getting off and stop people in general from going to the hole at will.