user: Question: If the Position is running back what is the Total number of Pick #?
Columns: ['Pick #', 'NFL Team', 'Player', 'Position', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [27.0, 'Miami Dolphins', 'Dan Marino', 'Quarterback', 'Pittsburgh']
SQL:

assistant: SELECT SUM("Pick #") FROM "Table" WHERE "Position" = 'running back';