FOXBOROUGH, Mass. — It is always challenging for the first opponent to face a team coming off a coaching change.

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The Patriots are in that situation Monday night, as the Giants arrive at Gillette Stadium with a new defensive coordinator.

There is no track record for the Patriots to study to anticipate how Charlie Bullen will approach his sudden promotion .

Bullen, in his second year as the outside linebacker coach, was elevated to defensive coordinator last week when Shane Bowen was fired by interim head coach Mike Kafka , who is in his role because Brian Daboll was fired 10 games into the season .

Bullen has extensive expe

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