CREATE TABLE table_70612 ("Poll" TEXT, "Pre- season" TEXT, "Mar. 3" TEXT, "May 5" TEXT, "May 12" TEXT, "May 19" TEXT, "May 26" TEXT, "Final Poll" TEXT)

Which pre-season has a Mar. 3 of nr, and a Poll of usa today/espn coaches' poll (top 25)?
SELECT "Pre- season" FROM table_70612 WHERE "Mar. 3" = 'nr' AND "Poll" = 'usa today/espn coaches'' poll (top 25)'
SELECT "Pre- season" FROM "table_70612" WHERE "Mar. 3" = 'nr' AND "Poll" = 'usa today/espn coaches\' poll (top 25)'