Question: Name the Round which has a Position of Defensive Back and a Pick of 226?
SQL: SELECT MIN("Round") FROM "2-16433861-1" WHERE "Position" = 'Defensive Back' AND "Pick" = 226.0;

Question: Name the Round which has a Player of Zack Walz?
SQL: SELECT "Round" FROM "2-16433861-1" WHERE "Player" = 'Zack Walz';

Question: Name the Round which has a Position of Defensive Back and Corey Chavous?
SQL: SELECT MIN("Round") FROM "2-16433861-1" WHERE "Position" = 'Defensive Back' AND "Player" = 'Corey Chavous';

Question: Name all Pick that has a Round of 7, and a School/Club Team of arizona st.?
SQL: SELECT COUNT("Pick") FROM "2-16433861-1" WHERE "Round" = 7.0 AND "School/Club Team" = 'arizona st.';