SCOTTSDALE, Ariz. — Charlie Blackmon doesn’t toss around cheap compliments, so when the Rockies’ veteran right-fielder goes out of his way to praise a player, you pay attention. In this case, teammate Raimel Tapia, the starting left fielder who batted .321 last season, including .326 in 34 games from the leadoff spot. “Raimel Tapia took a huge step forward last year,” Blackmon said Wednesday.