I remember Yost at the end of the season saying yeah Weeks was injured but we wanted him to get exposure to the major leagues, were told he couldn't make it worse (I think swinging with a bad thumb could, I don't know screw up your swing and hurt your wrists) and they wanted him to work on his defense (yes with a bad thumb). Thing is the Brewers were decent in 2005 and while unlikely to catch the Astros' 89 wins with someone else at 2B they could have easily had a winning season.