Glory fades quickly in the NFL and there are some teams coming off of impressive victories that may learn that lesson in Week 4.
That is not to say their seasons will become crushing failures, but they will find more questions than answers coming out of the weekend.
The Detroit Lions are quickly becoming a national darling. The excitement surrounding the team is real, and in most cases justified. However, they are facing their first tough road test in Dallas against the Cowboys.
Matthew Stafford and company showed total poise in coming from behind to beat Minnesota last week. That confidence will serve them well as the season moves along, but that confidence will not help their secondary against Tony Romo.
The Detroit Lions will look valiant in defeat, but issues about protecting Stafford and covering in the secondary will linger heading into Week 5.
After a very impressive victory over a AFC-favorite New York Jets team, the Oakland Raiders are being rewarded with facing the best player in the league right now, Tom Brady.
This is just a confluence of bad timing and events for the Raiders, to be facing the Patriots after such a shocking loss to the Bills by New England.
Oakland will be able to move the ball against New England in the running game and fantasy owners of Darren McFadden will not see a decline in performance until the Raiders fall far enough behind that they will be forced to pass.
Jason Campbell can lead this team to an AFC West title with ease, but after this game it will become clear that he is not up to the challenge of matching a passing attack like New England's.
The Raiders won't be sent reeling by this loss, but they will not want to face the Patriots in the playoffs if both teams make it that far.
Looking at scoring differential, the Ravens have scored twice as many points as they have given up this season (85 PF, 40 PA). That statistic would lead one to believe that this team is a juggernaut.
At 2-1 the Ravens are right where they might have expected to be, but the manner in which they got there is highly misleading. The blowout that they handed the Steelers seemed to be more a function of uncharacteristic turnovers by Pittsburgh, while last week's drubbing of a struggling St. Louis squad did little to prove anything but that the Rams need more work.
On Sunday Night Football, the Ravens will get a true measure of their standing in the AFC and they will likely find that they are still trying to acquire the form that they need to be an AFC front runner. Rex Ryan and his prime-time-tested New York Jets will rise to the occasion and send the Ravens back to the drawing board at 2-2.