CREATE TABLE table_74400 ("Date" TEXT, "Time" TEXT, "ACC Team" TEXT, "Big Ten Team" TEXT, "Location" TEXT, "Television" TEXT, "Attendance" FLOAT, "Winner" TEXT, "Challenge Leader" TEXT)

Who were the challenge leaders of the games won by boston college (88-76)?
SELECT "Challenge Leader" FROM table_74400 WHERE "Winner" = 'Boston College (88-76)'
SELECT "Challenge Leader" FROM "table_74400" WHERE "Winner" = 'Boston College (88-76)'