user: Question: What position did the player who was with the grizzlies from 2007-2009 play?
Columns: ['Player', 'Nationality', 'Position', 'Years for Grizzlies', 'School/Club Team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Sam Mack', 'United States', 'Guard-Forward', '1997-1998', 'Houston']
SQL:

assistant: SELECT "Position" FROM "Table" WHERE "Years for Grizzlies" = '2007-2009';