user: Question: What was the title of the episode directed by John T. Kretchmer? 
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (in millions)']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '"Pilot"', 'Mark Piznarski', 'David Maples', 'June1,2008', '5.25']
SQL:

assistant: SELECT "Title" FROM "Table" WHERE "Directed by" = 'John T. Kretchmer';