Please specify the rules regarding placement of the other 7 defensive players. ==

OK, we have defined the pitcher and the catcher, followed by the remark "The rest of the team faces home plate, typically arranged as ..." and the standard 4-infielder / 3-outfielder setup.  Aside from the pitcher and catcher, all the rules have to say about placement of the defensive players is that they can station themselves anywhere on fair territory.  Try a comment to that effect, because on rare occasions we see a "shift"; one example of a shift is putting the shortstop over to the other side of 2nd base.  — Preceding unsigned comment added by 128.63.16.82   

There is a topical article on Baseball rules to goes into this. Certainly, no one else in the past three years has felt it was necessary to add to this general overview article, so unless there's a detectable shift in sentiment, I think it's best to leave it as is.—  

 Please specify what constitutes a "run" in the opening paragraph. 

The opening paragraph is a very accessible introduction to the form of the game. However the definition of a run would be useful here, otherwise it stands as an undefined term until sometime later in the article.  — Preceding unsigned comment added by 80.169.130.38   

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