PHOENIX -- The read-option may be the NFL's in vogue offensive concept, but to the league's defensive-minded coaches it's just the latest in a long line of puzzles to solve.

"I think it's the flavor of the day," Pittsburgh Steelers coach Mike Tomlin said Tuesday at the NFL owners meetings. "We will see if it's the flavor of the year. We'll see if guys are committed to getting their guys hit."

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