Some post-match comments from Fremantle captain Nat Fyfe have revealed his coach Ross Lyon has indeed made wholesale changes to his dour game plan built on defence for season 2019.

The Dockers, who have finished 16th, 14th and 14th and welcomed 31 new players since 2016, now have only 11 players on their 44-man list older than 25 and some firepower up forward and it showed in Sunday's rampaging 82-point win over the Kangaroos at Optus Stadium.

Nat Fyfe salutes the crowd at Optus Stadium after the Dockers unveiled a new game style against the Roos. Credit:AAP

Fans have often bemoaned an apparent lack of pace at Fremantle but when you move the ball from half-back to half-forward as direct as the Dockers did on Sunday, you will always look quick.

'"We've adjusted our style and I think it really showed," captain Fyfe said after the match.