CREATE TABLE table_32177 ("Round" FLOAT, "Overall" FLOAT, "Player" CLOB, "Position" CLOB, "School/Club Team" CLOB)

What is the average round when there is a defensive back and an overall smaller than 199?
SELECT AVG("Round") FROM table_32177 WHERE "Position" = 'defensive back' AND "Overall" < '199'
SELECT AVG("Round") FROM "table_32177" WHERE "Overall" < '199' AND "Position" = 'defensive back'