Why do fans expect rookies to be finished products? ... by that standard Aaron Rodgers and Brett Favre were clearly bust because they sucked as rookies! ... the Packers drafted a lot of high potential but UNDEVELOPED players... expecting them to be the finished products as rookies is just nuts.
In Pettine's system, edge rusher seems to be less of a need as he manufacturers it with smart blitzing, what they need is coverage guys, and guys that can be physical and penetrate through guys (instead of around like edge) and need more guys like Wilkerson which can play anywhere from the 3 tech DT to the 6 tech 4-3 DE roles.
The OL needs to be improved (especially the OGs) but it seems like some fans are putting the entire offense struggles on them and ignoring the fact that this offense has struggled even on plays when the OL has been perfect! As it's a chemistry based system and Rodgers has had HORRIBLE chemistry with the rookie WRs and Rodgers claims they're not going where he wants and that builds distrust with keeps the ball in Rodgers hands (or tosses to the sidelines) when the OL does their job.... so a stud WR could also be needed. MVS and ST. Brown look a lot better when asked to be 3rd or 4th WRs instead of starters.