I didn't see all of the game last week, critically (although perhaps fortuitously) missing the first quarter. But my impression from Q2 when Adelaide was smashing us is that the main issue wasn't speed, or positioning, it was decision making and disposal. We did ok in defence, we did ok in the centre, we did ok in the clearances, but when we turned it over, boy did we get smashed. That was because of how we turned it over.
Normally, the bulk of turn overs are one on one's where everyone can see it might go either way, so there is some element of defensive positioning. Especially if the ball has gone to a one on one in the forward line. Sure, some players, especially forwards will break on the assumption our guy will win it, but not everyone. What I saw on Saturday was us breaking down on our transition towards the forward line. And that is deadly. Because players in that section of the ground have to break forward, to give the current ball carrier options. If he has nobody to pass it to, then he has to go sideways or take a fifty/fifty option. Which is not Worsfold's game plan (at least, once we've broken out of defence). The consequences of making that options is if it all goes pear shaped with a poor turn over, everyone is out of position with no hope of getting back goal side of their opponents.
On Saturday we were turning it over in that transition, which left everyone out of position and scrambling to get back. The ball was then quickly rushed the other way, and for a forward line as deadly as Adelaide's they had a field day. In the second half, we slowed down the movement and were a little more careful, and and also locked it in better into our forward line. Meaning Adelaide didn't get to catch us on the turn over through the middle as much, and didn't hurt us on the scoreboard to the same degree.
Now, why did we turn it over? And did this apply to Q1? I don't know. It could have been that Adelaide was much better at bringing the pressure. Maybe we were tired from the slog in the wet. Maybe we aren't reading where each other is yet since that team dynamic is yet to be built. Maybe it is something else, or a combination (likely).
But I wouldn't be saying we have to panic over the midfield quite yet.