CREATE TABLE table_10789 ("Player" TEXT, "Att." FLOAT, "Yards" FLOAT, "Avg." FLOAT, "Long" FLOAT, "FumL" FLOAT)

Tell me the greatest att with an avg of 4.3
SELECT MAX("Att.") FROM table_10789 WHERE "Avg." = '4.3'
SELECT MAX("Att.") FROM "table_10789" WHERE "Avg." = '4.3'