Instant analysis of 49ers’ comeback over Cowboys on ‘Sunday Night Football’

SANTA CLARA — The 49ers burst from their locker room Sunday night with a sensational display of urgency and productivity. Out of the halftime break, that is.

The 49ers flipped a 10-6 halftime deficit into a 27-10 lead by the fourth quarter, paving the way for a 30-24 victory over the Dallas Cowboys that leveled the Niners’ record to 4-4.

So, about that halftime speech? Who gave it?

“Honestly people never do. That’s more for movies,” coach Kyle Shanahan said. “We only have a few minutes.