LAKE FOREST, Ill. — D’Marco Jackson has been in these meetings. The Chicago Bears linebacker knows what to expect. The pop quizzes. The push to make sure players are paying attention. You'd better be locked in, because they fly in at any moment. And you don’t want to be on the wrong side.

Jackson understands the way Dennis Allen operates.

“It just makes you like a kid in class, like ‘Oh, is he about to call on you?’” Jackson said. “You ready? You’ve got to answer the question.”

Jackson has avoided being the target of an Allen inquiry this season, but the surprise tests have not caught him off-guard. The fourth-year linebacker watched the Bears defensive coordinator use the same tricks in meetings when they were together in New Orleans, when Allen was the Saints’ head coach and Ja

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