Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Round | Pick | Overall | Name | Position | College |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 4.0 | 4.0 | Leon Heath | FB | Oklahoma |
| 2.0 | 1.0 | 15.0 | Ed Salem | DB | Alabama |
| 2.0 | 6.0 | 21.0 | Jim Staton | DT | Wake Forest |
| 3.0 | 3.0 | 29.0 | Walt Yowarsky | DE | Kentucky |
| 4.0 | 1.0 | 40.0 | Paul Giroski | OT | Rice |
| 6.0 | 3.0 | 65.0 | John Martinkovic | DE | Xavier [w ] |
| 7.0 | 2.0 | 76.0 | John Papit | HB | Virginia |
| 8.0 | 1.0 | 87.0 | Bill Cox | DE | Duke |
| 9.0 | 3.0 | 101.0 | Jake Rowden | C | Maryland |
| 10.0 | 1.0 | 111.0 | James Janosek | T | Purdue |
| 11.0 | 1.0 | 124.0 | Bill DeChard | RB | Holy Cross |
| 12.0 | 3.0 | 138.0 | Al Applegate | G | Scranton [i ] |
| 13.0 | 2.0 | 149.0 | Dick Campbell | RB | Wyoming |
| 15.0 | 3.0 | 174.0 | Vic Thomas | OT | Colorado |
| 16.0 | 2.0 | 185.0 | Bob Bates | C | Texas A&M |
| 17.0 | 1.0 | 196.0 | Gene Brito | DE | Loyola [g ] |
| 18.0 | 3.0 | 210.0 | Dom Fucci | DB | Kentucky |
| 19.0 | 2.0 | 221.0 | Buddy Brown | G | Arkansas |
| 20.0 | 1.0 | 232.0 | John Kerestes | RB | Purdue |
| 21.0 | 2.0 | 246.0 | Clarence Marable | OT | Texas Christian |
| 22.0 | 2.0 | 257.0 | Elliot Speed | C | Alabama |
| 23.0 | 1.0 | 268.0 | Cecil Martin | RB | North Texas State [c ] |
| 24.0 | 3.0 | 282.0 | Tom Powers | RB | Duke |
| 25.0 | 2.0 | 293.0 | Bob Chubb | E | Shippensburg |
| 26.0 | 1.0 | 304.0 | Johnny Williams | DB | Southern California |
| 27.0 | 3.0 | 318.0 | Bill Johnson | RB | Stetson |
| 28.0 | 2.0 | 329.0 | John Kadiec | G | Missouri |
| 29.0 | 1.0 | 340.0 | Art Stewart | RB | Southeastern Oklahoma |
| 30.0 | 3.0 | 354.0 | Nick Bolkovac | DT | Pittsburgh |
Question:
What position does the player play with an overall of 304?
Answer:
DB