CREATE TABLE table_15281 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" TEXT, "Position" TEXT, "College" TEXT)

Round of 11, and a Pick # larger than 14 is the highest overall pick?
SELECT MAX("Overall") FROM table_15281 WHERE "Round" = '11' AND "Pick #" > '14'
SELECT MAX("Overall") FROM "table_15281" WHERE "Pick #" > '14' AND "Round" = '11'