Five lessons from last week:
• The Seahawks are not resting on February laurels – or anything else.
• Notre Dame gives Michigan 31 reasons to keep the Irish off its schedule.
• Derek Carr may not be the answer to all of the Raiders’ questions, but he could be one of them.
• The Astros won’t be able to hurt the A’s again this season.
• Tony Romo throws three interceptions but disappoints only about half of the crowd at AT&T Stadium.