The Ravens secured a flawless victory over the Pittsburgh Steelers in Week 1, but a few potential weak spots were exposed by the Tennessee Titans as the Ravens experienced a road letdown in a 26-13 loss in Nashville.

Titans quarterback Matt Hasselbeck threw for 358 passing yards against a Ravens secondary that was missing first-round pick Jimmy Smith and veteran nickel back Chris Carr. Baltimore couldn’t contain Kenny Britt down the field. And in the first two games of the season, the Ravens have allowed more than 600 passing yards.

Joe Flacco was brilliant against the Steelers. A week later, no one on offense shined as the Ravens were outgained by the Titans, 432 yards to 229. Baltimore wide receivers had just five receptions in the loss, and through two games, running back Ray Rice has caught as many passes (nine) as Anquan Boldin and company.

The offensive line looked lost at times against the Titans after bulldozing the Steelers. Ben Grubbs was inactive because of a toe injury, but either way, it’s unclear which of these two games will be the better indicator of how the line will perform in 2011.

The same thing goes for the pass rush, which had four sacks and forced seven turnovers in Week 1 but barely touched Hasselbeck.

The Ravens fall somewhere between the team we saw against the Steelers and the one we saw on Sunday, but some of these trends could have staying power. Which will be concerns all season?

Your turn: Which flaw will continue to cost the Ravens?