After Hours

Dinosaur sightings: NFL Challenge


There are plenty of plays for both offense and defense. Offense can run the shotgun, the option, or the 2 yards and a cloud of dust fullback dive. Defensive plays include man-to-man, blitzes, zone coverages, and nickel packages. But you have to learn the playbook.

Mark W. Kaelin

About Mark Kaelin

Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to,, and TechRepublic.

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