It’s still early August but the rookie class of 2015 is on the verge of becoming the most productive (via fWAR) first-year crop in the history of the game, Yahoo Sports’ Jeff Passan writes. The Astros‘ Carlos Correa leads the way, and Passan hears from two general managers who already rank Correa amongst the top 5-10 players in the game. Rookie position players are generally outshining the rookie pitchers, though this season has still seen several impressive young arms like Noah Syndergaard, Joe Ross, Aaron Nola and Lance McCullers make their debuts.