I admit, the Packer's O-Line is a concern.
However, the original question here is whether Green should be benched for Parker, and all I say is that you shoudn't rely on the play of 1 game against a lousy defense to annoint Parker as the next coming superstar RB. Green is a proven commodity (with 1 bad year - last year and it really wasn't all that bad ) while Parker is the flavor of the week. You also have to look at the fact that Green is at home against CLE - a defense even worse than Houston's Or Tennessee's! So we have a proven commodity playing against a ousy defense against an unknown playing against a lousy defense. You and your ilk annointed Parker based upon his play against a crappy defense. Now we can make the next logical step and say this, "If we annointed previously unknown Willie Parker based upon 1 game against a crappy D, how will a stud like Green do against a worse D at Lambeau field" ?
While I admit Parker looks good, I have to temper that with the fact that IT WAS JUST 1 GAME! Don't bench your studs, especially for the latest fad of the week!