How the heck did she/this team wind up being the ones that won the trials? They haven't made a shot all game.
Since the Johnson sisters appearance in Torino, the McCormick rink has pretty much dominated US Women's curling. They've won 4 straight national titles. Most of the other top womens' teams have shuffled lineups just to try to crack the McCormick run, but to no avail. (Their string of national titles will end this year, because although they automatically qualified for the championships as last year's champion, they decided not to compete - the probable favorites this year are Patti Lank's rink, who has finished runner-up to McCormick a couple of time during their run, including at last year's nationals/olympic trials).
As for Shuster, things just worked out well for him last year. Unlike the women, US men's curling has had four different national champions over the past four years (Fenson, Todd Birr, Craig Brown and Shuster). It's most likely that the champion this year will come out of that group as well. Fenson has been rotating new leads over the past few years, but might finally be settled on one as Tyler George, who skipped the team that lost to Shuster at last year's nationals/trials, broke up his team to join Fenson's as lead. Brown's team has become much better since added Rich Ruhonen as a vice three years ago and this year added the second from Craig Disher's team (Disher is former national champion who retired after last years nationals/trials).
I haven't caught up on watching all the games (will today), but it's been disappointing seeing all these misses by the US team, especially with Shuster missing draws to the button. It's probably the shot that skips practice the most, in addition to the one they throw before every competitive game in order to determine which team has hammer in the first end (which he has nailed at least 2 of the games, btw). And for example, at national playdowns, teams only get 10 minutes of practice on each sheet of ice before the tournament begins and only 7 minutes before each game (in reality, only 6 minutes - during the first minute you may only practice sliding). But they've had three days to practice on the ice. Not to mention that this is probably the truest ice these teams will ever play on. At most clubs, there are runs where the ice runs straighter than at other spots, places where rocks fall towards the wall at the edge of the sheet, so that rocks thrown outside might never curl back, etc. I haven't seen that at all so far these games.