Jonathon Mayo's latest mock draft for the 2012 MLB Draft has the St. Louis Cardinals selecting a young high school infielder:
19. St. Louis Cardinals: Corey Seager, 3B, Northwest Cabarrus HS (N.C.)
The Cardinals have two picks in the first round and thus have a little flexibility should they want to be more aggressive. There are college hitters like Shaffer and some interesting ones from high school. Seager, whose older brother Kyle plays third base for the Mariners, is a shortstop now, but most see him at the hot corner as a pro.
Corey Seager is the younger brother of current Seattle Mariners third baseman Kyle Seager. He also played for the USA Baseball 16-and-Under team, earning a gold medal in the 2010 Pan Am Championships.
Here is some video of the young prospect, courtesy of The Seattle Times: