That didn't screw it up at all.Collingwood, finishing 1st, should get the Friday Prelim.
All other games should be set up so everyone gets minimum 7 days breaks.
But the AFL wanted Melbourne v Carlton on Friday. That's what screwed it all up.
If they flipped the Semi-finals, Melbourne and Carlton would have had 9 and 8 day breaks, while Port and GWS would have had 6. Instead it was 8/7/7/7.