It's still early, but a trio of teams are coming off brutal Sunday lo ses. Is it time to panic in New Orleans, Carolina and Pittsburgh? Let's take a look:New Orleans SaintsSadly, . I fell hard for the promise of their high-octane offense and a Rob Ryan-led defense that showed vast improvement last season. After four weeks, though, New Orleans has stumbled on both fronts.The have just one takeaway all season, while Ryan's defense is giving up Malcolm Jenkins Jersey 25-plus points per game on the road. New Orleans must have known that Dallas would attack with the run on Sunday night, but it didn't help. The were manhandled at the line of scrimmage as ran free.On offense, there's been no replacing , who was among the NFL's best backs before his hand injury. Through the air, New Orleans hasn't lived up to its big-play potential. While and remain matchup nightmares, the weren't the first team to erase this season.Panic level: As long as and are on the payroll, there's hope. Still, we tend to overrate teams based on past succe s, and the reality is that New Orleans is 8-8 over its last 16 regular-season games. Seven remaining home tilts will help, but nothing we've seen to date suggests a team -- and that was the expectation.Carolina PanthersThe have been exposed over the past two weeks as Carolina's celebrated defense has allowed 195.5 rushing yards per game since Week 3.With no sacks or takeaways against Baltimore on Sunday, the -- stripped of and -- were beaten in the trenches and failed to put heat on . Carolina has given up an identical 454 yards in back-to-back tilts against AFC North opponents.On offense, has played well, but he isn't healthy. His limited mobility only magnifies an injury-riddled backfield reduced to and rookie as , and nurse injuries.Panic level: Facing a brutal upcoming slate that includes the , , , , , and , it's fair for fans to run through the streets in meltdown mode.Pittsburgh SteelersThe Tampa lo s was ugly, but there's too much talent on offense to write anyone off here. has been outstanding for a attack averaging 412 yards per outing. and have made plays weekly through the air while has averaged 5.2 yards per rush in every game but one this season. He's been as good as anyone on the ground.The defense is inconsistent: After allowing 342 yards rushing over the first two weeks, the have been better against the run. Pittsburgh, though, Zack Baun Jersey remains guilty of falling asleep at the wheel. After allowing the to score 24 unanswered points in Week 1, Pittsburgh fell apart against the in Week 2 before watching catch fire on Sunday.Panic level: It's too early to freak out, but let's settle down with the hubris, Pittsburgh:This is my favorite NFL thing today so far. Dan McQuade (@dhm) The latest recaps every game from Week 4 and picks the . Find more Around The NFL content on .