Orchard Park, N.Y. -- As soon as Tyrod Taylor was carted off the field in the Buffalo Bills' 23-3 loss to the New England Patriots on Sunday, attention turned back to rookie quarterback Nathan Peterman.

He hadn't stepped on the field since he threw five interceptions in the first half of the Bills' 54-24 loss to the Los Angeles Chargers two weeks prior.

"I've kind of just moved on and had full resolve in what I was doing and why I'm here and kind of my purpose," Peterman said after the game in the locker room. "It was a good chapel we had last night, too, that kind of helped that. Just kind of moving on and knowing that bad things happen sometimes and just trying to be ready every time I'm out there."

Peterman may have to be ready again. After completing just six of his 15 passes for 50 yards against the Patriots, there's a chance he could be back in the lineup against the Colts. With Taylor nursing a contusion of his patellar tendon and listed as day-to-day, Peterman will have to be ready.

Former Cowboys quarterback Tony Romo was in the broadcast booth for the Bills' game against the Patriots and provided some interesting insight on Peterman.

"Coaches like that he can almost memorize," Romo said. "So you show him a play or show him a couple things and they thought, 'Wow.' He has a great ability to retain the information and give it back to you and that's a big deal."

After Peterman's first throw, which was dropped by Andre Holmes, Romo pointed out what makes Peterman a bit different than Taylor.

"That's the reason they put him in right there," Romo said. "He didn't wait for him to come open. He felt the anticipation and threw between three guys. That's a perfect ball. Andre Holmes has to come up with that catch."

Later, Romo added. "You see the timing of it? In practice, the coaches see that. The timing sometimes is a little different. Taylor gives you different things. He allows you to bootleg, he allows you to move around. He can use his legs and he also throws a good ball. It's about the anticipation that you want Taylor to be better at.

Peterman later sailed a pass on a skinny post, but he still impressed Romo in the process.

"This is what I want to see," Romo said. "I want to see him fire like he is right here. That's actually a big boy throw right there. That will tell you if guys can play if they're able to turn and rip it on a deep slant or skinny post type.

"If he can finish this game and put together two good drives or a drive and a half. There's always a chance you could see him. You never know what's going on with Taylor. Is it a serious injury or something small? He's more calm in this one. He's at home, not on the road. The pass rush isn't in his face in one second with Bosa over there with the Chargers."

Peterman isn't perfect, though. His timing and anticipation are bright spots, but Romo still needs to see him have a bit more patience.

"He gets in rhythm, but he has to make good decisions," Romo said. "Right now, Peterman, if you just don't throw interceptions, you have a chance to really impress your staff, your teammates, everybody. Just calm down. A sack doesn't kill you. Go through the progressions and deliver."

Peterman admitted after the game that he plays the game with a quick trigger.

"I think that's kind of how I play the game," Peterman said. "When your first read is open, you have to hit him. I missed a couple of throws at first and could have been more accurate. I'm going to go back, look, try to get better and just keep going through my progressions really.

"I felt prepared. Obviously, the coaches did a great job preparing us all week, and I just think we left a few things out there. We could have had a couple touchdowns probably there, especially when you get down to the red zone, you need to score there. We have to get better."

Peterman may get a chance to get better against the Colts in Week 14. Either way, he's preparing the same.

"Yeah, I don't know what's going to happen," Peterman said. "Every single week, it's kind of a boring answer, but it's the same thing, I'm ready because that's my job. Wherever they want me to play, second string or whatever, I'm going to be ready, and that's the same approach this week."