CREATE TABLE table_14675 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" CLOB, "Position" CLOB, "College" CLOB)

What's the highest round for a defensive tackle position?
SELECT MAX("Round") FROM table_14675 WHERE "Position" = 'defensive tackle'
SELECT MAX("Round") FROM "table_14675" WHERE "Position" = 'defensive tackle'