user: Question: WHAT IS THE AVERAGE OVERALL, FOR Mark Fischer?
Columns: ['Round', 'Pick', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [2.0, 18.0, 48.0, 'Stephen Alexander', 'TE', 'Oklahoma']
SQL:

assistant: SELECT AVG("Overall") FROM "Table" WHERE "Name" = 'Mark Fischer';