(20110501) Catching On

-Catching On: Tools Get Catchers Like Tony Sanchez Drafted, But it Can Take Years to Develop the Position's Subtle Skills.

-Opening Day Rosters for Every Major and Minor League Team.

-Dispatchers From Around the Minors as Season Gets Under Way.

-It's Already Midseason in College Game, so We Check in on Highs and Lows.

-Columnists Weigh in on Manny's Sudden Retirement.