user: Question: Which Lead has a Third of Randy Ferbey (skip), a Second of Scott Pfeifer, and a Season of 2009–10?
Columns: ['Season', 'Skip', 'Third', 'Second', 'Lead']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1997–98', 'David Nedohin (fourth)', 'Randy Ferbey (skip)', 'Carter Rycroft', 'Pat McCallum']
SQL:

assistant: SELECT "Lead" FROM "Table" WHERE "Third" = 'Randy Ferbey (skip)' AND "Second" = 'Scott Pfeifer' AND "Season" = '2009–10';