Book excerpt: The updated and expanded second edition of this classic book on the 4-3 defense contains six new chapters by some of America's best coaches, including: Chuck Pagac on the OSU 4-3 secondary coverages, Terry Hoeppner on the outside linebacker in the 4-3 defense, Sunny Lubick on the 4-3 blitz package, and Tommy Tuberville on the Auburn 4-3 Defensive Package. Contains 12 other articles on virtually every other aspect of the 4-3 defense.