Day smiled wide, the players all cheered — and a new era began Tuesday night in California.
Of course, the players already knew Day.
He was the quarterbacks coach the past two seasons and helped coordinate the offense.
He also took over the program in August when Meyer was accused of mishandling allegations former assistant coach Zach Smith abused his wife.
Day led the Buckeyes to a 3-0 record while Meyer was suspended for mismanaging Smith’s employment, a test run that gave Day a chance to get to know more members of the team he hadn’t worked with as closely before.
Day’s time as acting head coach helped prepare him to take the job full time, but he said that was just a piece of a long professional journey that began at New Hampshire, his alma mater.
He also served as a graduate assistant at Boston College and Florida (where he first worked for Meyer in 2005) before holding full-time positions at Temple and Boston College.
He went to the professional ranks in 2015 as quarterbacks coach of the Eagles and held the same job the following season with the 49ers, both times working under mentor Chip Kelly.
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All along the way, he took notes.
“Absolutely. I've done that for the last 10 years,” Day said. “I have a book of things I've learned, my head coaching book over here, and I'm going to use that as a reference as always.”
He kept learning in December, observing how Meyer prepares a team for a bowl and more.
“Talking about going through practice one, practice two, how we handle Christmas, how we handle the breaks, how do we handle the practice on site and the guys checking in and curfew, all the things that come with organizing a team, kind of go over here in a bank.”
Ohio State's 28-23 win over Washington was Meyer's last game as head coach of the Buckeyes. (Video provided by the Rose Bowl)
What awaits Day is a unique challenge.
He has taken over one of the winningest teams of all time during a period the program has known even more winning than usual.
As successful as John Wilce, Woody Hayes, Earle Bruce, Jim Tressel and John Cooper (all College Football Hall of Famers) were, they couldn’t match Meyer’s winning percentage (90.3) at Ohio State.
He brought a national title home in 2014 and won the Big Ten three times.
Considering Alabama has made the College Football Playoff five years in a row, there is room for improvement — but not much. Besting Meyer just might require perfection.
» MORE ON MEYER: Five highlights of Meyer’s career| Comparing Meyer to other OSU coaches| Meyer in photos through the years
One of the keys to Meyer’s success was turning Ohio State from a top 10 recruiting program to one that generally finished in the top five, and he gave Day a good start there.
While the 2019 class that just signed ranks only No. 12 in the country (in part because it includes only 16 members), the group of six players already committed for 2020 is ranked No. 3 in the 247Sports Composite rankings.
“When I stepped into that role in August we had a group of players and a group of coaches that had to step up our game, remember that?” Day asked the players after receiving the whistle from Meyer. “And everybody in this group did that. We wouldn’t be standing here today if everybody in that room didn’t stand up. We wouldn’t be there today if the culture that Urban Meyer built here wasn’t the way it was.
“And so now we’re going to keep moving this culture forward with the group here, and the reason why we can do that is we can stand on the shoulders of the guys who have come before.
“The coaches who have come before. The administrators that have come before and the players. The seniors who are leaving here have left a legacy and I’m proud to be charging this forward. I’m proud to be part of this group.”
He punctuated his acceptance speech with a, “Let’s go get ‘em!” before the obligatory, “Go Bucks!”
The Rose Bowl will be his last game as a head coach at the school he grew up loving.
Beyond bringing in the most talent, he will have to decide who will be a part of his first staff.
That began with the hiring of Oklahoma State offensive coordinator Mike Yurcich, but several decisions will have to be made in the coming days.
>>RELATED: Day names new passing game coordinator, QBs coach
Then there is the challenge of developing players both on and off the field.
That became an increasingly important role to Meyer as he advanced in his coaching career, and it is a task Day seems to also hold dear.
Maintaining each part of the infrastructure Meyer put in place is going to to be essential for Day to please both his bosses inside the university (Gene Smith, University President Dr. Michael Drake, the board of trustees) and out (fans).
Is he ready?
Ready as he’ll ever be.
“I've been exposed to some great coaches along the way and exposed to some high-level coaching and going to use something from each of those coaches that we're going to build a culture that way and my philosophy,” Day said before the Rose Bowl. “But that being said, I've been in the program now for a couple of years. Had an opportunity to walk in the footsteps of the head coach here at Ohio State, understand what that is and want to keep the infrastructure here.
“My philosophy and values are so much in line with what's here right now, and I want to keep that culture going and the infrastructure this year going right now.”