Best fighters at adapting to win?

[Gandalf]

Calzaghe always found a way to win. He came out all gungho against Kessler realised he would be better off trying to box rather than mix it up. He confused everyone he ever fought, nobody could really work him out or keep up with him.

[Boxer4life]

cant belive no one mentioned ali, one of the smartest fighters if not THE in boxing history

[Dia bando]

Not saying he's a great fighter but you have to say Ricky Burn's, did prove to
a lot of people he is a good fighter.?

[Althugz]

Mayweather Jr the obvious one, Marquez is excellent at it..and to a lesser extent Fernando Vargas could adapt nicely until he gassed out late. (vs Tito)
Maravila adapted nicely against Barker.