For Jakesie's peace of mind and to backup/reiterate Pete here are some stats from some recent Packers draft picks in their rookie season:
Clay Matthews: 16 games played, 51 tackles, 10 sacks
Greg Jennings: 14 games played, 632 rec yards, 3 TD
Jordy Nelson: 16 gp, 366 rec yards, 2 TD
BJ Raji: 14 gp, 25 tackles, 1 sack
AJ Hawk: 16 gp, 119 tackles, 3.5 sacks, 2 int
Jermichael Finley: 14 gp, 74 rec yards, 1 TD
James Jones: 16 gp, 676 rec yards, 2 TD
Mason Crosby: 16 gp, 79.5%
Sam Shields: 14 gp, 29 tackles, 2 INT
T.J. Lang: 16 gp
Brian Baluga: 12 games started
Jarred Bush: 16 games played
That's a pretty decent history of drafting players that make an immediate impact.