ANAHEIM, Calif. – The names at the top of the Astros’ draft board for the first overall pick of the 2013 amateur draft gradually have been whittled down from eight to seven to five. Now, with just six days remaining before the Astros select first overall Thursday, a year-long search for the premier young talent in baseball is expected to come down to two hard-throwing righthanded college pitchers and two smooth-hitting college third basemen. None has the innate athleticism, long-term ceiling or positive shock value of recent No. 1 picks such as Bryce Harper, Stephen Strasburg, David Price, Justin Upton, Joe Mauer, Adrian Gonzalez or Josh Hamilton. But for an [...]