Watch the teams that we knew should win at the brier this week, and you notice some things. Here they are in no particular order:
The sweepers sweep very close to each other and the rock.
When there's a discussion on the shot, all members of the team are in on it, and the front-end can and will talk the back-end into shots
Sweepers switch on come arounds and for hit and rolls (the guy closest to the rock is on the side of the roll)
Add to that the mystique of some of these teams, and I think they start the game up one with the hammer. Mentally speaking, of course.