user: Question: Name the average overall for James Davis
Columns: ['Round', 'Overall', 'Player', 'Position', 'College']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 21.0, 'Ted Watts', 'CB', 'Texas Tech']
SQL:

assistant: SELECT AVG("Overall") FROM "Table" WHERE "Player" = 'James Davis';