These were the case on Madden 12. I would expect they are the same or are pretty close.
-Punt Return:
PR, #2/3/4 CBs, #2FS, #1/2 SSs, #1 ROLB, #2 OLBs, #2 MLB
-Punt Block:
PR, #2/3 CBs, #1 ROLB, #1/2 FSs, #2 SS, #2 OLBs, #1/2 MLBs
-Punt Return Safe:
PR, #2/3/4 CBs, #1 ROLB, #2 OLBs, #2 MLB, #1/2 SSs, #2 FS
-Punt: P, #3/4 CBs, #1 FB, #2 FS, #2 SS, LS, #2 OLBs, #1/2 MLBs
-Punt Protect: P, LS, #1/2 FBs, #1 OLBs, #1 MLB, #2 SS, #2 OLBs, #2 MLB
-Kickoff Coverage: K, #4/5 WRs, #3/4 CBs, #2 SS, #2 FS, #2 OLBs, #2 MLB, #2 TE
-Kick Return/KR2: #1/2 KR, #1 FB, #1/2/3 TE, #2 CB, #2 MLB, #2 OLBs, #2 SS
-Onside: K, #2/3/4 CBs, #2 FS, #2 SS, #3/4/5 WRs, #2 TE, #2 OLB(Not Sure R/L)
-Onside Recover: #1/2KR, #1/2/3 HBs, #1/2/3 WRs, #1 FB, #1/2 TE
-FG Block: #1/2 DTs, #1 LE, #1 RE, #1 SS, #3/4 CBs, #1 ROLB, #1MLB, #2 OLB(Not Sure R/L),
PR
-FG/Extra Point: K, #2QB, LS, #1Gs/Ts, #2 HB, #1/2/3 TEs
I feel the whole depth chart needs to be updated to allow you to chose or at least show you somewhere who is involved.
I would also like the number system such as WR #1 #2 #3 in the depth chart to change to terms like Split End or Flanker with their own numbers to define exactly who lines up where and who is the first to be subbed in to those positions. This could be done for a few positions and even more with multiple fronts such as who you want as NT.
Like the different types of concepts they have done I would like to see positions explained more and could be tied in to the players style rather than a short sentence of explanation which should help newcomers to American Football and expand the meanings of the style to experienced players.