CREATE TABLE table_14242 ("Round" FLOAT, "Pick #" FLOAT, "Player" TEXT, "Position" TEXT, "College" TEXT)

Which round was the defensive tackle picked after 187?
SELECT AVG("Round") FROM table_14242 WHERE "Position" = 'defensive tackle' AND "Pick #" > '187'
SELECT AVG("Round") FROM "table_14242" WHERE "Pick #" > '187' AND "Position" = 'defensive tackle'