user: Question: What is Stanford's average overall?
Columns: ['Round', 'Pick', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 1.0, 1.0, 'Harry Gilmer', 'QB', 'Alabama']
SQL:

assistant: SELECT AVG("Overall") FROM "Table" WHERE "College" = 'Stanford';