MINNEAPOLIS -- This is Brett Hundley’s offense now, and it’s Mike McCarthy’s job to customize it to the Green Bay Packers' new starting quarterback.

You could almost sense that the veteran coach’s focus already had turned that way in the moments after the 23-10 loss at the Minnesota Vikings on Sunday -- the day that will be remembered for Aaron Rodgers’ broken right collarbone, a potentially season-ending injury.

Everyone in the visitors’ locker room at U.S. Bank Stadium expects Hundley to be better this Sunday, when he’ll make his first start against the New Orleans Saints. Count Hundley among that group. He’ll have the full week to prepare as the starter.

Last week, Hundley did not take a single rep with the No. 1 offense.

This week, he’ll take them all.

Perhaps more important than the on-field reps will be how McCarthy builds a game plan for his new quarterback, and injuries on the offensive line -- where three of the five starters dropped out of Sunday’s game -- will factor in as well.

“I have confidence in Brett Hundley, but more importantly it’s how it all fits together,” McCarthy said. “So we’re going to have strengths as an offense, we’re going to focus on those, look at the matchup of our opponent and then we’re going to go get it.”

Hundley is similar to Rodgers in the way he moves; both are athletic enough to make plays outside the pocket. But every quarterback has favorite routes and concepts, so the offense may take on a new identity.

“Aaron likes certain things, I like certain things,” Hundley said. “It is what it is. We're able to talk about that, obviously during the week, especially when Aaron's healthy, he takes all of it and we game plan with Aaron.”

That’s why it’s so much harder for a backup quarterback to jump in on a moment’s notice than it is for most other position players.

“You've just sort of got to make it work on the field when we go in there,” Hundley said.

Perhaps McCarthy will go back to the summer of 2015, when Hundley played well enough in the preseason as a rookie to lead the NFL in exhibition passing yards (630). He threw seven touchdowns and only one interception that summer.

“It’s important for us to make sure that Brett has the opportunity to have a game plan for Brett,” Packers receiver Randall Cobb said. “This game plan was obviously for Aaron. With him, we had to go to some of the base calls and do some different things up front. We’ll go back to the drawing boards now.”

Hundley’s touchdown-to-interception ratio (one touchdown, three interceptions) won’t cut it, especially when the Packers are used to someone so careful with the football. Rodgers has the best TD-to-INT ratio (4.1, 301 to 75) in NFL history. Two of Hundley’s interceptions on Sunday came on deflected passes, but they were turnovers nonetheless.

“I need to do a better job as a playcaller putting him in better position to be successful,” McCarthy said.

Of all the things they’ll miss without Rodgers, perhaps none is more difficult to replicate than his ability to make adjustments at the line of scrimmage, whether it’s with playcalls or cadence to get the defense to jump offside.

“Aaron's been calling the adjustments, they're sort of on the same page, so when I'm out there it's a little slower, maybe a little bit trickier,” Hundley said. “But we made some good adjustments. There are some things we didn't communicate well and we'll fix those. This week will help us a lot going into next week, especially with the preparation that I get to take with the offense.”

That’s perhaps the best thing the Packers had to hang their hats on as they headed home, that everything will revolve around Hundley this week.

“I'll feel a lot better, I can tell you that much,” Hundley said. “It's different as a backup when you don't get any reps during the week and then you're sort of out there. But we've got to prepare that way and that's the way that I've been preparing as the starter week in and week out. So it'll be a little different this week, actually get the reps and get the walk-through with our offense. So it'll for sure be better and we'll have some fun.”