1,787: That's the number of yards the Eagles have surrendered on defense this season, which has them ranked dead last in the league defensively. Dating back to 1986, only three teams have given up more total yards during the first four weeks of the season, but two of those teams did it in the last two years.
793: That's the number of rushing yards the Eagles have accumulated, which leads the league by a huge margin. In fact, that's the most rushing yards a team has recorded during the first four weeks since Michael Vick and the Atlanta Falcons had 937 yards on the ground during the first month of the 2006 campaign.
Just like that Falcons team, the Eagles are averaging a league-high 6.1 yards per rushing attempt, which is the all-time record for the first quarter of the regular season.
468: That's the total number of rushing yards LeSean McCoy has compiled, which leads the league. He's on pace to run for 1,872 yards, which would be a career high and the 12th-highest total in NFL history. Only Adrian Peterson is within 100 yards of McCoy right now.
6.9: That's the average number of yards the Eagles are picking up per play, which leads the league. In fact, only the 2000 "Greatest Show on Turf" St. Louis Rams have averaged more than 6.9 yards per play over the course of a full season. Not even the powerhouse Denver Broncos have been able to keep pace with them here (although they're awfully close at 6.8). They rank just back of Denver in total yardage with 1,835.
24.8: That's how many points the Eagles are averaging on a per-game basis. Despite those gaudy yardage numbers, that PPG average ranks them way down in 12th.
41.7: That's the percentage of Eagles red-zone opportunities that have resulted in touchdowns, which ranks 28th in the NFL. That's the primary reason why the Eagles have been accumulating yardage at a near-unprecedented pace but not scoring—or winning—at the same rate.
Their red-zone scoring rate is actually worse than it was last year under Andy Reid. Inside the opponent's 20-yard line, Michael Vick has completed just three of his 15 passes for a total of 31 yards, per Tim McManus PhillyMag.com.
66.8: That's the number of plays the Eagles have run on a per-game basis. Remember all of that preseason talk about Chip Kelly's up-tempo offense and the ridiculous number of plays the Eagles were expected to run every week? Well, 10 NFL offenses have run more plays per game than Philly has thus far.
24:58: That's the average time the Eagles have possessed the ball for this season, which ranks dead last in the NFL. It's not as though they've turned it over a lot, but they still have a turnover ratio of minus-2. The biggest factor, though, is that their average drive has lasted only 2:02, which is the third-lowest average in the league, 23 seconds below the NFL median.
It's hard to gain control of games when your opponent possesses the ball nearly 60 percent of the time.
46.5: That's the percentage of dropbacks on which Vick has been pressured, according to Pro Football Focus (subscription required), which is the second-highest rate in football and the highest of Vick's career in Philadelphia. His sack percentage of 17.9 is also on pace to be a new high for Vick in Philly.
68.0: That's the pass-blocking efficiency rating PFF has assigned to the Eagles' offensive line, which is the second-lowest in football. Despite being healthy this year, that line has given up 61 pressures in four games. Not pretty and a big reason why Vick is going down more often than at any other point in the last nine years.
3.06 seconds: That, on average, is how long Vick is standing in the pocket before attempting a pass, per PFF. No other quarterback in the league has taken more than three seconds to throw. In 2011 and 2012, he spent about 2.8 seconds per snap in the pocket, which was still problematic. An extra two tenths of a second is ridiculous.
55.1: That's Vick's completion percentage, which ranks ahead of only three qualifying quarterbacks (Brandon Weeden, Blaine Gabbert and Josh Freeman). Taking drops, throwaways and spikes into account, PFF has concluded that Vick is the league's third-least accurate passer thus far.
24: That's how many 20-yard completions Vick has, which leads the league. He also has four 40-yarders, which is tied atop the NFL. He's averaging 16.6 yards per completion, which has saved him a bit this year. His 9.2 yards-per-attempt number is second to only Peyton Manning.
44: That's the percentage of third downs the Eagles have converted, which ranks seventh in the league. It's also up 16 percent from last season.
44.7: That's the percentage of drives on which opposing offenses have scored on the Eagles, which is the highest rate in the NFL. Opposing quarterbacks have completed 70.2 percent of their passes while posting a 107.2 rating against this defense.
-8.7: That's rookie right tackle Lane Johnson's PFF grade, which ranks him 67th out of 72 qualifying players at that position. The No. 4 overall pick has taken four penalties and given up 19 pressures.
15: That's the number of pressures Todd Herremans has given up at right guard. That lands him the fourth-worst PFF pass-blocking productivity rating among 60 qualifying players at that position. Herremans was solid at right tackle last season, so the transition to Johnson is hurting in more ways than one.
9.1: That's Jason Kelce's PFF run-block rating, which is tops among NFL centers by a wide margin. In fact, it places him second among all NFL offensive linemen...behind linemate Evan Mathis (13.5).
2: That's the total number of sacks Connor Barwin and Trent Cole have recorded in a combined eight starts. PFF ranks both players in the bottom 10 at their position in terms of pass-blocking productivity. So, why has Brandon Graham only been on the field for 73 snaps in four games? That must change.
-27.1: That's the combined PFF grade posted by Eagles inside linebackers Mychal Kendricks and DeMeco Ryans. Based on that, Kendricks is the worst player in the league at that position, and Ryans is third-worst.
13.0: That's Cedric Thornton's run-stop percentage, per PFF. He has nine stops and 15 tackles on 69 run snaps, which ranks second in the league to only J.J. Watt among all 3-4 defensive ends. Nobody expected Thornton to be the best defensive player on this team, but that's probably been the case thus far.
Unless stated otherwise, stats courtesy of Pro Football Reference and NFL.com.