We have our Grand Final and it’s a contest of the two teams most picked to get there heading into the finals series.   Brisbane and Fremantle’s finals series have reflected their seasons. They have boiled themselves down to their essential selves.   All year long, Fremantle has played outrageous patches of footy, while spending most of their games playing just okay, showing plenty of grit to hang in there defensively. It’s why I’ve called them an expeditionary force all year. They get in, kidnap Maduro, and get out.   Against Sydney on Friday night, they did it again. The Delta Force operators Shai Bolton and Hayden Young, ably supported by Pat Voss and Caleb Serong, simply took the game away from Sydney…