The Eagles opened their organized team activities – otherwise known as "practice" — on Tuesday, and it was our first glimpse of the full squad. Here's a rough draft of the depth chart off team drills. Various players were substituted in and out with more than one unit, not every player is listed below, and several players were missing either because of injury or because workouts are voluntary. But here is the general breakdown:

OFFENSE
(First – second – third)
QB: Carson Wentz               –  Nick Foles                          – Matt McGloin
RB1: LeGarrett Blount        -- Wendell Smallwood         -- Byron Marshall
RB2: Darren Sproles           --  Donnel Pumphrey           -- Corey Clement
WR1: Alshon Jeffery           – Dorial Green-Beckham    –  Mack Hollins
WR2: Torrey Smith             -- Nelson Agholor                 -- Shelton Gibson
Slot: Jordan Matthews       -- Bryce Treggs                     -- Marcus Johnson
TE:   Zach Ertz                      --  Brent Celek                      --  Trey Burton
LT:   Lane Johnson              --  Dillon Gordon                  --  Victor Salako
          (Jason Peters)
LG:  Isaac Seumalo             --  Chance Warmack            --  Dallas Thomas
                                                       (Allen Barbre)
C:    Jason Kelce                  --  Stefen Wisniewski           --  Aaron Neary
RG:  Brandon Brooks         --  Josh Andrews                   --  Darrell Greene
RT:   Halapoulivaati Vaitai – Matt Tobin                         --  Taylor Hart

DEFENSE
(First – second – third)
RDE:  Vinny Curry               --  Derek Barnett                 --   Steven Means
                                                                                                        (Marcus Smith)
RDT:  Tim Jernigan             --  Winston Craig                 --  Winston Craig
                                                       (Beau Allen)
LDT:  Destiny Vaeao          --   Justin Hamilton              --  Justin Hamilton
            (Fletcher Cox)                (Elijah Qualls)
LDE:  Brandon Graham     --   Chris Long                       --   Alex McCalister
MLB:  Jordan Hicks            --   Don Cherry                     --  Steven Daniels
                                                       (Joe Walker)
SLB:  Nigel Bradham         --   Najee Goode                   --  Don Cherry
WLB: Mychal Kendricks   --   Kamu Grugier-Hill           --  Nate Gerry
CB:    Patrick Robinson    --   Rasul Douglas                   --  Dwayne Gratz
CB:    Jalen Mills                --  C.J. Smith                           --  Mitchell White
Slot:  Jalen Mills                --  Aaron Grymes                   -- Jomal Wiltz
           (Ron Brooks)
SS:   Malcolm Jenkins      --  Terrence Brooks                -- Tre Sullivan
FS:   Rodney McLeod       --  Jaylen Watkins                  --  Chris Maragos

While it is true that the depth chart in May will look different from the way it will look in September, it does give us an early peek into how the coaches see the competition at several key positions. Last year, for instance, opened with Eric Rowe not at first-team corner, which seemed surprising considering how he finished the previous season. Jim Schwartz warned against making any assumptions, but it was a clear indication that the new defensive coordinator wasn't a fan, and several months later, Rowe was traded.

These players were missing from practice Tuesday: defensive tackle Beau Allen, defensive tackle Fletcher Cox, tackle Jason Peters, punter Donnie Jones, cornerback Sidney Jones, running back Ryan Mathews, defensive tackle Elijah Qualls, and defensive end Marcus Smith.

Allen has a torn pectoral tendon and could be out until the season. Both Allen and coach Doug Pederson said that there wasn't a timeline for his return. Cox, Peters and Jones didn't attend the elective practice. Cox is home with his family, per a source, but is expected back for next week's OTAs. Johnson said that he thought Peters would be back by minicamp next month.

Sidney Jones and Qualls can't attend NFL workouts until they graduate from college. Jones, who is recovering from an Achilles tendon rupture, wouldn't have practiced anyway. Mathews is still recovering from neck surgery. He will likely be released once he's deemed healthy. Smith was missing in action, and the Eagles didn't have an immediate answer on his whereabouts.

Cornerback Ron Brooks and linebacker Joe Walker were at practice and participated in some drills, but were held out from team drills. Brooks is coming back from a torn quad tendon injury and Walker is recovering from last August's torn ACL. Offensive lineman Allen Barbre sat out practice with a calf injury, and undrafted rookie center Tyler Orlosky was out with a knee injury.