I know. Thanks to Rand Paul, plagiarism is the talk of the town these days.

But I came across a recent book review of Michael Lewis' “Moneyball” on the 10th anniversary of its publication, in which the reviewer wrote the following about the effect “Moneyball” had on the money aspect of Major League Baseball:

[Lewis’] best-seller stabilized the market inefficiencies Billy Beane had been exploiting. It was as if Lewis had shown David's playbook to Goliath. When the two returned to the field, Goliath had a slingshot of his own.

Compare with pg. 143 of Lewis' own book, in which he's talking about A's first baseman Jason Giambi signing with the Yankees:

Goliath, dissatisfied with his size advantage, has bought David's sling.

Would you consider this plagiarism?