user: Question: How many pick numbers did matt marquess have?
Columns: ['Pick #', 'MLS Team', 'Player', 'Position', 'Affiliation']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [29.0, 'Los Angeles Galaxy', 'Julian Valentin', 'D', 'Wake Forest']
SQL:

assistant: SELECT COUNT("Pick #") FROM "Table" WHERE "Player" = 'matt marquess';