Question: Which pre-season has May 5 of 21?
SQL: SELECT "Pre- season" FROM "2-12225593-15" WHERE "May 5" = '21';

Question: Which March 3 has a Poll of Baseball America (Top 25)?
SQL: SELECT "Mar. 3" FROM "2-12225593-15" WHERE "Poll" = 'Baseball America (Top 25)';

Question: Which pre-season has a Mar. 3 of NR, and a Poll of USA Today/ESPN Coaches' Poll (Top 25)?
SQL: SELECT "Pre- season" FROM "2-12225593-15" WHERE "Mar. 3" = 'NR' AND "Poll" = 'USA Today/ESPN Coaches'' Poll (Top 25)';