user: Question: What is the pick number average for the player who was drafted before round 7, and went to college at Tennessee?
Columns: ['Round', 'Pick #', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 9.0, 9.0, 'John Henderson', 'Defensive Tackle', 'Tennessee']
SQL:

assistant: SELECT AVG("Pick #") FROM "Table" WHERE "Round" < 7.0 AND "College" = 'Tennessee';