What happened: Dallas added Mike Pettine to support its defensive coaches in a move tracing to early staff planning around Christian Parker. Washington brought in Steve Wilks to work with coaches under Dan Quinn and Daronte Jones, a decision made a month ago.

Why it matters: Dallas sits 2-3 after a Week 5 loss to Tampa Bay, with defensive performance driving the search for experienced help. Washington sits 1-4-1 and 15th in a 16-team NFC, leaving both staffs looking for stability without changing play-callers.

What to watch: Both teams continue game preparation with the additional coaches working behind the full-time staff. Any expanded game-day or play-calling role would require a separate team announcement.