What is the average Pick, when Name is 'Lybrant Robinson', and when Overall is less than 139?
CREATE TABLE table_76309 (
    "Round" real,
    "Pick" real,
    "Overall" real,
    "Name" text,
    "Position" text,
    "College" text
)
SELECT AVG("Pick") FROM table_76309 WHERE "Name" = 'lybrant robinson' AND "Overall" < '139'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the average Pick, when Name is 'Lybrant Robinson', and when Overall is less than 139? ### Input: CREATE TABLE table_76309 (
    "Round" real,
    "Pick" real,
    "Overall" real,
    "Name" text,
    "Position" text,
    "College" text
) ### Response: SELECT AVG("Pick") FROM table_76309 WHERE "Name" = 'lybrant robinson' AND "Overall" < '139'