"Chip hasn't defined an offense. Up-tempo. I remember playing against him in college and it was up-tempo and I believe that whoever the quarterback is, you build the offense around that," Foles told reporters.
"I feel like I can run anything. I love this team. I'm getting to know the coaches. I'm here to compete. This team's here to achieve the same goal, and that's win, and I'm just ready to compete."
Kelly has said the Eagles will hold an open competition in training camp to determine the starting quarterback. Philadelphia began voluntary workouts Monday.
Foles, 24, will be competing with Michael Vick, who he replaced as the starter at the end of the 2012 season under former coach Andy Reid. Vick, who turns 33 in June, signed a one-year deal in February to return to the Eagles. The Eagles also signed quarterback Dennis Dixon, who played for Kelly at Oregon, this offseason.
Foles replaced an injured Vick last November and started six games, going 1-5 on a team that finished 4-12.
He completed 60.8 percent of his passes for 1,699 yards, six touchdowns and five interceptions.
When the season ended, it appeared Foles was poised to be the team's No. 1 quarterback going forward and Vick was heading elsewhere. But after Kelly was hired to replace Andy Reid, Foles' future in Philadelphia became questionable.
Foles, a classic, drop-back passer, doesn't appear to possess the speed or mobility to fit into the up-tempo offense Kelly successfully ran at Oregon. But Kelly has insisted there's more than one way to run his offense and he'll work his system around his personnel.
Receiver DeSean Jackson said Wednesday that he believes Foles can run Kelly's system.
"Nick Foles is a special player," Jackson told reporters. "He's never been in an offense like this before, but I think he'll do fine. He's a great quarterback."
Foles said he entered this offseason believing he can be the starter.
"If you want to be a quarterback in this league, or in pee-wee or something, you have to believe you're the guy. If you think 'I'm a backup,' you're going to be a backup. That is how it is," Foles told reporters.
The Eagles, who hold the No. 4 overall pick, hosted West Virginia quarterback Geno Smith for a visit Wednesday. Foles said he isn't worrying about the team picking a quarterback prospect in the draft and is focusing on improving his own play.
"I'm just going to get better. I'm just going to keep working. It's a business. I know throughout the draft process I went through, teams bring you in and they analyze what they think are the best players in the draft. That's the smart thing to do. That's out of my control. My control is getting better every day. I'm just excited to be here and I'm going to keep working," he told reporters.
Information from The Associated Press was used in this report.