I think you missunderstand what a grace period is.
If the Red Sox were to go 0-162, you could be agitated, but you couldn't complain.
I realized that no team can win 10 consecutive championships (unless your the Celtics) and if they win one, which is tough to do anyway, they deserve a grace period of two years or maybe one, depending on how demanding you are.
Example: I am a huge Tampa Bay Buccaneers fan, though I can complain about how dumb Jon Gruden is, I wasn't bothered that we didn't win the Super Bowl these last two years. Now since that time is up, I expect this team to compete this year. BTW, Patriots fans should give their team a 6 year grace period, because of how dominant they have been, but they'll always compete as long as Brady, Bellicheck, and Pioli are at the head of the team.
Most of the Red Sox fans who demand the team to win every year, basically sound like Yankee fans, and while I respect some Yankee fans (AROD2112 for one) I refuse to be catergorized into that sect of people.
I'd rather sound like a patient person, then a OMG! TORRE U BLO, FRANCONO U BLO 2.