PITTSFORD, N.Y. — He’s known within the team as “G-Ro.”

That’s Greg Roman, who's entering his second year as the Buffalo Bills’ offensive coordinator.

After five years as an NFL offensive coordinator — first with the San Francisco 49ers from 2011-14 — the diversity and size of Roman’s playbooks have become one of his calling cards around the league.

His offence is attempting to build on a surprisingly strong 2015 in which first-year starting quarterback Tyrod Taylor piloted an attack that led the league in rushing (152 yards per game), improved from 26th to 13th in total offence (361 yards per game) and led the NFL with 102 “big plays” (70 rushes of over 10 yards, 32 passes of over 25 yards), according to Sportingcharts.com.

A few minutes after the Bills’ second training-camp practice concluded Sunday at St. John Fisher College, Roman talked to Postmedia.

A partial transcript of the interview:

Q: Will your 2016 offence appear familiar to Bills fans when you take the wraps off in September, or are you reinvigorating it with new plays and new concepts?

ROMAN: “Always. You adapt or die. We’ve eliminated some things, we’ve added some things that are totally new. We’ve added some things that are things that I’ve done in the past, that I feel like we’re ready for now.”

Q: Pass or run elements?

ROMAN: “A little bit of both — the overall scope of the offence, in order to fit it to our players. Hopefully we can stay together, stay healthy this year and really, really focus in on each player and what they do well … We’ll just have to see how it goes.”

Q: We hear more and more about football coaches who one week drop in a slew of new plays they haven’t shown before while using little of last week’s playbook, even if it was highly successful the week before — and then keep changing it up like that again, week after week, to best take advantage of the opponent’s defence, and to give that week’s defensive coordinator a helluva lot to worry about stopping. Do you subscribe to that thinking?

ROMAN: “Oh yeah. I think if you asked around about me you’d probably find that that’s the case. We try to be as opponent-specific as possible. The way we look at it is, How valuable is a win? Can you put a value on a win? I’ll do anything within the rules to win a game.

“Our players, we ask a lot from them. Our focus becomes what we as an offence have become really skilled at, but at the same time we ask, Where is the opponent really vulnerable? Where can we create favourable opportunities? That’s not something you just kind of dip you toe in the water on. It’s something you really want to commit to as a coach, and I think our players have done a nice job of buying into that. And sometimes the trick is that there is no trick, there are no changes that week, so you have that in your pocket as well.”

Q: There were few criticisms of your offence or its output last season. One was you didn’t work in athletic tight end Charles Clay nearly enough. Do you plan to change that in 2016?

ROMAN: “Oh yeah. We need to, for sure. That’s part and parcel with what we need to do.”

Q: You have some speedy receivers here in camp. Granted, it’s a 90-man roster right now, but if some of the speedier receivers make the 53-man cut, you could wind up with one of the fastest receiving corps in the league. That couldn’t help but aid your run game, too, right?

ROMAN: “Oh, without question. I think the two work hand in hand. We want to be as efficient as we can, but it’s important for the fans to realize that in training camp, we’re trying to get these guys ready for the entire season. We’re going to play a lot of different kinds of defences, a lot of different fronts, a lot of different kinds of coverages. So we’re not trying to go out and necessarily build stats during practice. We’re trying to build a callous in training camp — build some toughness, learn every day and get our offence ready for the season. I think we did a nice job today of getting that mission accomplished.”

Q: Offensive-line cohesion is crucial for a team to be successful, at any level. And you’re starting 2016 with probably the best five men who played in 2015 (LT Cordy Glenn, LG Ritchie Incognito, C Eric Wood, RG John Miller, RT Jordan Mills). That’s got to be a huge plus for your offence.

ROMAN: “Oh yeah. And those guys have the right attitude, too. I think what you just stated is, you know, you hit the nail on the head. But let me just go one step further and say these guys have the right mindset, the right stuff, to be a great offensive line.”

Q: What mindset?

ROMAN: “It’s a mindset where they come to work every day with a lunch pail, and they try to get better all the time. It’s just a relentless attitude toward the details. And it involves, in that group, selflessness, communication, helping each other out. And sometimes this guy might have the tough down, and sometimes the other guy might have the tough down, based on how the defence lines up, or the protection. But they’re always in sync.

“I really think it starts with that tough, blue-collar mentality. And these guys have it. They don’t brag about it -- but let me brag on them, cuz they’ve got it. They did some pretty laudable things last year, and I think people are starting to really respect them.

“But don’t tell them I said all this nice stuff.”

Email: JoKryk@postmedia.com

Twitter: @JohnKryk