At what point would a skins fan be justified in calling for Gibbs' resignation?

[freddyg12]

brian billick - offensive genius w/poor offense
m. Lewis - def. guru w/poor defense
tuna - discipinarian whose team is among league leaders in penalties & who is just over .500 since coaching cowpokes
j. gruden - struggling O even when simms was healthy

Gibbs' offenses have struggled, but made great strides last year & we went to the 2nd rnd. Just take a look around the league & run the numbers on any given coach. Aside from Bellicheck, Reid, Shanahan & maybe Cowher, ups & downs are the norm in today's nfl. Even those guys had down years, see Philly last year & Pitt this year. Mike Holmgren was about to lose his job, then went to a super bowl.
The days of Gibbs I, Landry, B.Grant & Chuck Noll are long over. Its a lot harder to maintain a winning record & continuity for a long career. Bottom line, Gibbs got us back in the playoffs & had people talkin super bowl. Even if this year we don't make the playoffs, if JC turns out to be the real deal, Gibbs will have given us stability that we haven't seen since he left. If I have to lose, I'll lose w/Gibbs anyday before letting snyder open his checkbook to the next savior.