Eddie Jones said England could not have played any worse in the first 20 minutes against Australia, but revelled in their second-half dominance that secured a 37-21 Twickenham win and an undefeated 2016.
The Wallabies opened up a 10-0 lead in the early stages, as well as seeing two attempted tries ruled out by the TMO, but England were ahead by the break thanks to an opportunistic kick through from Owen Farrell and Jonathan Joseph's sharp reaction to chase down the ball and score under the posts.
England emerged for the second half 16-13 down, but Marland Yarde and Ben Youngs touched down to take the game away from Michael Cheika's side.
Victory was England's 14th in a row - matching a record set under Clive Woodward's stewardship - and made them just the third tier-one nation to play 10 or more matches in a calendar year and win them all, not that Jones was keen to focus on the positives straight from the off.
"We were terrible the first 20 minutes," Jones told Sky Sports. "I don't think we could have tried to play any worse than we did, but the guys rebounded magnificently to get back in the game, conversely our first 20 in the second half was outstanding.
"We were strangely quiet in the warm-up today and you sensed the players were a little bit nervous.
"At the end of the day, it was a big occasion, got a chance to beat Australia 4-0 over the year, got a chance to go the year unbeaten.
"We didn't talk about that but there was plenty of discussion in the media."
Jones said man-of-the-match Youngs had "put his hand up for a Lions jersey" and the scrum-half was candid on Jones reaction to England's sub-par first half.
"It was still pretty calm," he said.
"Sometimes there are moments of the hairdryer treatment but we were just a little bit flat. Eddie just said that we couldn't play any worse than that first half and that it was up to us to rectify that.
"We knew what we needed to do it was just about doing it."