CREATE TABLE table_64903 ("School" TEXT, "City" TEXT, "Team Name" TEXT, "County" TEXT, "Year Joined" TEXT, "Year Left" TEXT)

Which school left in 1968 and has the team name of Panthers?
SELECT "School" FROM table_64903 WHERE "Team Name" = 'panthers' AND "Year Left" = '1968'
SELECT "School" FROM "table_64903" WHERE "Team Name" = 'panthers' AND "Year Left" = '1968'