What period(s) featured a left inside linebacker?
CREATE TABLE table_28606933_7 (period VARCHAR, position VARCHAR)
SELECT period FROM table_28606933_7 WHERE position = "Left inside linebacker"
### Context: CREATE TABLE table_28606933_7 (period VARCHAR, position VARCHAR) ### Question: What period(s) featured a left inside linebacker? ### Answer: SELECT period FROM table_28606933_7 WHERE position = "Left inside linebacker"