You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Bump and run coverage is a strategy often used by defensive backs in American football in which a defensive player lines up directly in front of a wide receiver and tries to impede him, which formercornerback, five-time Pro Bowler and a 1989 Pro Football Hall of Fame inductee of the Pittsburgh Steelers, specialized in this coverage to such a point as to cause a rule change?" whose answer is Melvin Cornell Blount.
Each document should contain about 30 words, and these documents should contain useful information.

Query: former Pittsburgh Steelers cornerback Pro Bowl Hall of Fame bump and run coverage rule change
Useful Output:

Doc 1: Let's run team-by-team and try to estimate each notable player's chances of making it to the Hall of Fame given his current résumé.
Doc 2: His tenacious harassment of receivers in bump-and-run coverage led to the NFL's current interpretation of the illegal contact rule. In other
Doc 3: Even after rule changes took away his favorite “bump-and-run” strategy, Blount continued to be named to. All-NFL teams and the Pro Bowl. He finished his 14-
Doc 4: During his 14-year career, Blount became one of the best cover men in NFL history. Mel Blount was so good they had to change the rules @
Doc 5: He was so big and tough that they changed the bump and run rule to stop Mel from dominating receivers.