NFL fans saw Joe Flacco throwing the Baltimore Ravens' Week 4 hopes away with five interceptions in a 23-20 loss at Buffalo on Sunday.

As we pointed out on the "Around The League Podcast" Sunday recap though the roots of the Ravens' problems lie hidden beneath the surface in the form of an ineffective offense line and unreliable pass catchers.

An ornery coach John Harbaugh took aim at both groups Monday pulling no punches in his assessment of the offense's slow start.

"The whole O-line is disappointing right now" Harbaugh said pointing out that it hasn't exactly been a smooth transition from Matt Birk to Gino Gradkowski making calls from the center position.

Tackles Bryant McKinnie and Michael Oher have struggled to open running lanes while Gradkowski and left guard Kelechi Osemele have allowed too much pressure on the interior.

With Dennis Pitta sidelined a drop-prone Ed Dickson took the brunt of Harbaugh's ire at the pass-catching woes of the Ravens' tight ends.

"The stats kind of speak for themselves. He's not the same player right now that he was (when he caught 54 passes in 2011)" Harbaugh added. "If he has a confidence problem that's on him. Ed needs to catch the ball. If he's thinking about anything besides that he's doing himself a disservice. You got that kind of talent and those kind of gifts go play ball."

While Pitta's injury and the inability to replace Anquan Boldin have left the Ravens undermanned in the passing attack it's easy to identify with Harbaugh's frustration. The offensive line was a major asset during last year's Super Bowl run and Dickson caught 54 passes just two years ago.