user: Question: What is the mean pick number for iowa College when the overall is less than 200?
Columns: ['Round', 'Pick #', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 30.0, 30.0, 'Patrick Kerney', 'Defensive End', 'Virginia']
SQL:

assistant: SELECT AVG("Pick #") FROM "Table" WHERE "College" = 'iowa' AND "Overall" < 200.0;