Posted by ESPN.com's Tim Graham
A few reminders for fans getting too lathered up or excessively despondent over how great or awful their teams are two games into the season:
The Buffalo Bills started out 5-1 last year and didn't make the playoffs.
The Miami Dolphins opened last season 0-2 and won the AFC East.
The Sports Illustrated cover curse will claim a victim or two before it's all over.
One significant injury can change the course of a season. There are players on each team a fan would dread losing to a torn ACL or a dislocated something-or-other.
The 1998 Bills started 0-3 but made the playoffs.
Rex Ryan joined two other rookie head coaches who started their careers by not allowing an offensive touchdown in back-to-back games: Red Miller with the 1977 Denver Broncos (AFC champs) and Kay Stephenson for the 1983 Bills (didn't make the playoffs).
Four words: performance-enhancing substances policy.
Pete Carroll won his first two games as Jets coach. He finished 6-10 and didn't return.
Al Groh won his first four games as a Jets coach. He finished 9-7 and didn't return.
The Jets have opened 2-0 nine times in franchise history. They've gone on to make the playoffs twice: in 2004 and 1968, when they won the Super Bowl. Their combined record in seasons when they win their first two games is 63-56-2.
Jerod Mayo will be coming back for the Patriots eventually.
If Terrell Owens can heat up, the Bills' already-surprising offense can do some damage.
The San Francisco 49ers are 2-0, just like they were two years ago. They finished 5-11.
The Bills shut out the Patriots 31-0 in the 2003 opener. SI put the Bills on the cover. They couldn't reach the playoffs, and the Patriots won the Super Bowl.
The New Orleans Saints are the fifth team in NFL history to post 45 points in each of their first two games. Only two of the others reached the postseason.
Saints quarterback Drew Brees tied Charley Johnson's 44-year-old record with nine touchdowns through the first two games. Johnson's 1965 St. Louis Cardinals went 5-9.