CREATE TABLE table_75998 ("Season" TEXT, "Coach" TEXT, "Overall" TEXT, "Conference" TEXT, "Big Ten" TEXT, "National" TEXT)

What is the Coach with a Big Ten that is 1st (148)?
SELECT "Coach" FROM table_75998 WHERE "Big Ten" = '1st (148)'
SELECT "Coach" FROM "table_75998" WHERE "Big Ten" = '1st (148)'