Luis Rivera will join the Binghamton Mets as the AA hitting coach replacing the recently promoted Luis Natera. Rivera worked the last two years as the Mets' short-season hitting coordinator, overseeing the GCL/Kingsport/Brooklyn and complex teams. Rivera played for the B-Mets in 2007, hitting .316/.409/.351 in 18 games. An organizational soldier, he reached AAA with Buffalo in 2009. In 2010, he was a player/coach for Savannah, and saw action in 21 games before the Mets suggested he move into coaching fulltime and assigned him to the Kingsport staff.
At the new FiveThirtyEight.com, Neil Paine writes about the expected value of the Top 100 prospects on the Baseball America list. I'd like to see a little more about the variance on each spot, and the raw data, but ... oh well.