PHILADELPHIA -- Chip Kelly likes to describe his approach as a “one-week operation,” meaning the Philadelphia Eagles are currently focused only on the Arizona Cardinals, their next opponent. That was true last week during the Eagles’ bye.

Well, mostly true. The Eagles also focused a little bit on another team. Themselves.

“We just analyze what we did in certain situations,” Kelly said Tuesday. “We went through goal line, we went through coming out, we went through third-down situations, we went through openers, kind of looked at everything. What we were successful at -- kind of looked at it on film -- what we weren't successful at, why we weren't successful at it. Was it personnel, was it scheme, was it we weren't prepared for this? So, you're kind of looking at everything that you're doing.”

Late last week, the coaches began zeroing in on the Cardinals. It helps that the Eagles played Arizona last season. That gives the coaches a starting point in their preparation.

“We always look at everybody,” Kelly said. “We looked at both Giants games when we played the Giants. If we've played a team before, it's a benefit to us. We'll go back and watch it. When we played the Bears in preseason, we watched the Bears from the year before. We played the Patriots preseason, we watched the Patriots game in preseason from before. Whenever you have a game from a year ago and the coordinators are the same and the coaches are the same, you're going to take a look at it. If it's a whole new coaching staff, then sometimes that doesn't benefit you, but if it's got the same coaching staff, and obviously they do, so we looked at it.”

The Eagles won that game, 24-21. As it happened, they were also coming off their bye week before playing the Cardinals. That game was in Philadelphia. This week’s will be in Glendale, Arizona.

Kelly was asked if it was easier to prepare after a poor effort or a loss than it was after arguably the Eagles’ best overall game of the season, their shutout win against the Giants last week.

“I hope not,” Kelly said. “I wouldn't want it the other way, I'll tell you that. If I had my choice, I would rather have it the way we have it right now. I mean, you always want to continue to play, but we still have a lot of things from the Giants game that we can improve on. We didn't play a complete football game. We turned the ball over a couple times on the offensive side of the ball. We punted six times. You know, we've got to do a better job in a lot of categories, so it's not like we're patting ourselves on the back after that performance. I thought we played well, I thought we played with good energy, I thought we played hard, but there's still a lot of things we can do to be a better football team.”