Don't discount the heavy legs from the last 2 games in the wet, S Hill in particular looked like he was running in mud. I would bet the training load did not lighten off last week, and it showed.
Your midfield is always going to be chasing, when they are not rewarded for catching the opposition.
How can your forwards score when they have the ball taken off them when they do mark (Walters). We see opposition backmen do this to our forwards all the time with no free, and then that gets called. The headlock put on the Freo playeyr in the Pies goalsquare by Elliott is another example, think it led indirectly to a goal.
When you are not getting paid frees that the opposition ARE getting; ie holding the ball and illegal disposal (6 or 7 to 1 by my count, even though the tackles are 33 to 29, when the first 4, in the first, and in the second quarter 5 frees have gone to the Pies to give them a free ride, things are going to be a little bit tougher.
The reason why Freo are rushing their disposals is that they know they will be free kicked against if a half tackle is laid, while the opposition have an eternity to dispose of the ball, or get a ball up if they hold it in.