INDIANAPOLIS -- Andrew Luck and rookie Ryan Kelly have experienced some of the same things at quarterback and center, respectively, for different reasons at different playing levels.

Luck has taken snaps from five different starting centers during his first four NFL seasons. Kelly, the Indianapolis Colts' first-round pick, snapped to three different starting quarterbacks and had three different offensive coordinators while at Alabama.

As odd as it might sound, that's one reason why it won't be surprising if Luck and Kelly quickly develop a smooth relationship on the field.

"The biggest challenge of getting the relationship down? That's a good question," Luck said. "I think it's just spending time with each other. I think one is the football side and one is sort of the social, outside-of-football side. We're forced to hang out every day for at least six hours right now, so that's pretty easy. We'll make sure we do some stuff out of the building."

Kelly has been working with Luck and the rest of the first-team offense during organized team activities, and the intention is for Kelly to remain there for years to come.

"There are going to be growing pains," coach Chuck Pagano said. "We know that, he understands that and we're just going to take it one day at a time and keep working."

Luck and Kelly have lockers right next to each other. And while Luck said the two need to make sure they have an off-field relationship, especially when it comes to seeing how much Kelly can eat, the quarterback also jokingly pointed out that they haven't gone out to dinner because he "can't be too nice to the rookies yet."

"He's been great. He's smart. He's conscientious. He's tough," Luck said. "I think he's got a little ornery in him. He's a little bit mean, which is great. It's nice to be locker buddies with Ryan. He's gone out there and really been impressive in the couple days of team stuff and even last week, during the sort of Phase 2 stuff and on-the-field stuff."

The Colts made Kelly just the ninth center drafted in the first round since 2000 because they couldn't find a player capable of taking hold of the position full time.

Khaled Holmes. Jonotthan Harrison. A.Q. Shipley. Mike McGlynn. Samson Satele. Each center had a different playing style, a different way he snapped the ball. Harrison for example, is a heavy sweater, which requires the quarterback to make sure his hands are dry to reduce the possibility of the ball slipping away. So there was a transition period with each player working with Luck, despite the Colts giving each center snaps with the starting quarterback in practice.

Kelly didn't snap to three different quarterbacks at Alabama because of poor play. Those players -- AJ McCarron (2013), Blake Sims (2014) and Jake Coker (2015) -- all started as seniors and Alabama went 37-5 during that three-year span.

But, like Luck with his centers, Kelly had to take the time to develop a relationship with each quarterback.

"It's crucial," Kelly said about his relationship with Luck. "With the pro-style offense, especially the way it has been in the last couple of years, the importance is huge and ultimately a lot of the points that the quarterback and center are making, they involve all 11 guys together. Sometimes the quarterback can override that, sometimes the center can override that, so I think it's about building a trust relationship off the field as well. I think you certainly have to have that, so obviously that is something that I want to build with Andrew."

The biggest key to speeding up the process in the quarterback-center relationship, according to former Colts center Jeff Saturday, is for Luck and Kelly to take as many snaps as possible. Saturday would know. He and Peyton Manning started an NFL-record 170 games together during their 13 seasons as teammates in Indianapolis.

It won't be surprising if Luck and Kelly continue to work together after the team finishes its mandatory three-day minicamp in June.

"The reason why Peyton and I had the rapport we did was because we played so many games together," Saturday during an interview with ESPN.com in 2014. "If you think about it, you're starting 16 games a year, not including the playoffs, for how many years in a row. It was a rarity that one of us was not at a practice or at a game. You begin to build a relationship because you're always there together. That is something that takes time. It's not going to happen overnight."