PHILADELPHIA - Eagles coach Andy Reid fired defensive coordinator Juan Castillo two weeks ago after the defense blew fourth-quarter leads in back-to-back games.

That wasn't a problem for new defensive coordinator Todd Bowles on Sunday, but only because the game was already out of hand after three quarters.

Atlanta's prolific offense scored three touchdowns and three field goals on its first six possessions during a 30-17 victory over the Eagles at Lincoln Financial Field.

"I don't have any regrets (about firing Castillo)," Reid said. "I did what I did and what I thought was right at that time."

Cornerback Nnamdi Asomugha, defensive end Jason Babin and others insisted that Bowles made no drastic changes to the defense and the players didn't execute the game plan.

Falcons quarterback Matt Ryan threw for 262 yards and three touchdowns. Running backs Jacquizz Rodgers and Michael Turner combined to rush for 118 yards on 32 carries. Wide receiver Julio Jones caught five passes for 123 yards, including a 63-yard touchdown against Asomugha.

"We made mistakes," Babin said. "We had some penalties on us, we had some guys that were not in the right spots and there were mistakes we shouldn't make. But we did it to ourselves. (Bowles) didn't make us make mistakes. We knew what (the Falcons) were going to do and we just didn't execute."

The Eagles' defense earned two sacks after being shut out in two straight games - one apiece by defensive tackles Cullen Jenkins and Cedric Thornton - but did not create any turnovers.

"We didn't show up," Jenkins said. "Whatever we could have done wrong, we pretty much did. But (changing defensive coordinators) has nothing to do with it. When it comes down to it, you've got guys on the field to make plays and we didn't make them."

Heart to heart

Virtually every Eagles player described the loss in terms such as "disappointing," "embarrassing" and "frustrating."

Running back LeSean McCoy took it a step further, suggesting the Eagles lacked heart.

"I'm just saying what it looked like," McCoy said. "How we played, how the game ended, I didn't see any pride. I didn't see any heart. This is the whole team, myself included. We didn't get it done today.

"I don't think the team has given up. We have been in bad positions before. Last year, we almost had a chance to come back and get in the playoffs. I don't think guys are quitting, but we have to show more heart and more effort on the field."

Inside the numbers

McCoy has scored receiving touchdowns in three straight games, the first Eagles running back to do so since Brian Westbrook in 2005. ... McCoy's 30 career rushing touchdowns rank sixth in franchise history. ... Wide receiver DeSean Jackson's 263 receptions are the second most by an Eagle in his first five seasons. Mike Quick had 273. ... Quarterback Michael Vick ended the game with 8,230 passing yards as an Eagle, good for seventh place on the team's career list. ... Place-kicker Alex Henery has made 11 field goals in a row.

Lineup changes

Rookie linebacker Mychal Kendricks was benched for the first series for what Reid termed "disciplinary reasons."

Kendricks said afterward that he was late to a meeting. Casey Matthews started in his place.

Rookie Dennis Kelly made his first NFL start at right guard in place of injured Danny Watkins. Watkins, the Eagles' first-round draft pick in 2011, was sidelined by a chronic ankle injury that flared up late last week. Kelly, a fifth-round draft pick this year, was a backup tackle until being switched to guard on Thursday.

"I was a little nervous at first, especially running out of the tunnel," Kelly said. "But once the game started, I was fine. I thought I played pretty well."

King Dunlap replaced Demetress Bell as the starting left tackle. Dunlap started the first two games this season before suffering a strained hamstring. Bell had started the last four games.

Out of action

In addition to Watkins, the Eagles inactives included linebacker Jamar Chaney, defensive end Vinny Curry, quarterback Trent Edwards, wide receiver Damaris Johnson, running back Dion Lewis and guard Nate Menkin. Chaney has now been deactivated for two straight games after starting the previous two at weakside linebacker.

Bumps and bruises

Wide receiver Mardy Gilyard suffered a strained hamstring in the first quarter and did not return.

Up ahead

The Eagles (3-4) travel to New Orleans to face the Saints on "Monday Night Football" next week. The Eagles lead the series 16-11 and have won seven of the last 10 meetings. The Eagles are making their first trip to New Orleans since 2007.

The Saints are 2-5 following their 34-14 defeat at Denver on Sunday night.

Contact David Weinberg: