From the complexities of DeSean Jackson to the fight for the last roster spot, we’re talking receivers in the latest edition of the Twitter Mailbag.

The NovaCare practice fields had not been re-sodded since the complex opened back in 2001. The team had been mulling the project for a couple years, and decided this was the time to pull the trigger.

Rams running back Isaiah Pead called his rookie season “miserable.”

The 50th overall pick in the 2012 draft and presumed heir apparent to Steven Jackson never got off the ground. He slipped behind seventh-rounder Daryl Richardson on the depth chart and ended with only 10 carries for 54 yards on the season.

Rams general manager Les Snead attributed a portion of Pead’s struggles to the effects of the league’s graduation rule — the same one that kept tight end Zach Ertz and cornerback Jordan Poyer away from the NovaCare until recently.

Bennie Logan has been flying under the radar a bit since becoming an Eagle. There’s been plenty of attention paid to classmates Lane Johnson, Zach Ertz,  Earl Wolff and of course Matt Barkley, but seldom does the  third-round selection get highlighted.

That’s about par for the course for the 23-year-old defensive lineman. Surrounded by the likes of Michael Brockers,  Morris Claiborne, Tyrann Mathieu, Kevin Minter and Eric Reid over his college career, Logan rarely found himself in the spotlight while at LSU. But his play stood out to NFL scouts, and he went into April’s draft with a second/third round grade.

The Eagles walked away from their pre-draft sit-down with Logan extremely impressed, and had him tabbed as a second-round talent. He fell to the third, and they snagged him with the 67th overall pick.

Tickets to the five training camp practices at Lincoln Financial Field this summer will be made available starting at 2 pm today. You can get the free  tickets  by going to PhiladelphiaEagles.com, Ticketmaster.com or by calling Ticketmaster at 1-800-745-3000. There is an eight-ticket limit per practice.

Albert Breer recently wrote a piece for NFL.com titled, “Who’s really in charge? Power structures vary across NFC East” in which he tries to decipher who is calling the shots for each of the four teams in the division.

In Dallas, it’s quite obviously Jerry Jones. Giants’ general manager Jerry Reese has final say over the draft and the 53-man roster. In Washington, Mike Shanahan has control over all football decisions. Pretty straightforward…until you get to the Eagles.

From Snoop Dogg’s thoughts on the quarterback competition to Jeremy Maclin’s next stop, here’s a roundup of what they’re saying about the Eagles.

Brent Celek appeared in 93 straight NFL games before a concussion forced him to sit out against Cincinnati last December. That stopped an iron man streak that not only spanned his entire professional career, but his college and high school days as well.

“The last time I missed a game was in the sixth grade. I dislocated my elbow,” said Celek back in November. “I popped it back in myself. I scored a touchdown on the play…It was just reaction. I just hit it and it popped back in. And when I popped it back in it broke.”

There have been plenty of injuries to fight through since. He dislocated his shoulder while at Cincinnati. Sustained a shoulder tear his rookie season with the Eagles (“It would dislocate every single game,” he said). Suffered a sports hernia and a torn labrum in his hip. Got that concussion against the Bucs last year. And on and on…

The tolerance for pain and willingness to fight through it is obviously very admirable. But you wonder about the cumulative effect.

DeSean Jackson grabbed the microphone and asked for a show of hands: Who needs a bottle of water?

A couple minutes later, the Eagles’ wide receiver returned, carrying an old Hewlett Packard printer box filled with sodas, water, chips and refreshments.

This was a different environment for Jackson. He is used to playing in front of big crowds at the Linc. But this was a more intimate gathering in a small theater at the student center on the campus of Saint Joseph’s University. Jackson was there as one of the hosts for an advanced screening of DeSean Jackson: The Making of a Father’s Dream, a fascinating documentary produced by his older brother, Byron.

DeSean Jackson made some headlines earlier this week when he appeared on NFL Network and said “the team” wants to know who the Eagles’ starting quarterback is going to be.

Yesterday, at an advanced screening of his brother Byron’s documentary, DeSean Jackson: The Making of a Father’s Dream, he expanded on those comments.

“As far as myself, I don’t really know what the team is OK with and not OK with,” Jackson said. “At the end of the day, I don’t know where it stands, who’s going to be the starting quarterback. I wish I could know, but at the end of the day, that’s the coach’s decision, so I guess you have to play that how it goes.”

From new roles for Trent Cole and Brandon Graham to the changes for safeties and linebackers, here are three things we learned about the Eagles’ defense this spring.

Chip Kelly has made it clear that the coaches can only go so far with their evaluations in the spring.

“We have an understanding of their athletic ability and how they run, change direction and things like that,” Kelly said. “But there are still a lot of things to be evaluated when you put the pads on. It’s still a physical game. A lot of guys look great in shorts and T‑shirts, then they disappear when you put the pads on. So we have an evaluation in terms of athletic ability, how fast some guys are, their ability to change direction and things like that. But until we get the pads on, we can’t tell.”

And that’s just fine with Arrelious Benn.

The Eagles acquired the 6-2, 220-pound wide receiver for his physicality and versatility. After three disappointing seasons in Tampa, the 24-year-old now has an opportunity to follow through on the potential he showed at the high school and college levels.

The Eagles and quarterback Matt Barkley have agreed to terms on a four-year contract. Of the eight Eagles 2013 draft choices, only No. 4 overall pick Lane Johnson remains unsigned.

Do recent comments from a couple of the veterans suggest the team is not on board? When will a starting quarterback be named? We address those questions and more in the latest Twitter Mailbag.

What will training camp at Lincoln Financial Field look like? The Eagles provided some details Thursday.