OWINGS MILLS, Md. -- Baltimore Ravens offensive coordinator Gary Kubiak is using part of his bye week to figure out why quarterback Joe Flacco has regressed this season.

In the first weeks of the season, Flacco completed 66.7 percent of his throws and averaged 266 yards passing per game. He threw 12 touchdowns and three interceptions for a 97.8 passer rating (10th-best in the league).

Over the last four games -- since throwing five touchdowns in Tampa -- he has connected on 60.3 percent of his passes and averaged 231.1 yards passing. He has thrown five touchdowns and five interceptions for a 78.6 rating (No. 25 over that span).

In his first year in Kubiak's offense, Flacco should be getting better at this time of the year and not worse.

"That's what I'm studying right now," Kubiak said. "You go through phases throughout the course of the season. I'm trying to go back and look at the things that he's very comfortable with and maybe some of the things I've asked him to do here over the course of a few weeks that maybe got him out of that comfort zone. So, I'm trying to find that as a coach, and as we go into these last six weeks, get him as comfortable as I can."

Flacco has looked anything but confident in recent weeks. He has missed open receivers and he is not following through on his throws. There has been increased pass pressure, but Flacco is hurting himself with his lack of pocket awareness. At the end of the first half Sunday, right tackle Rick Wagner got bull-rushed into Flacco, who just needed to step up in the pocket to avoid the sack.

He's still on pace for his first 4,000-yard season and a career high in touchdowns, but the past four games have shown that the passing game remains a work in progress.

"We've got to clean up some of our decision-making and I think I can help him with that by how I call plays, too," Kubiak said. "That's what I'm trying to really check myself first before I go to Joe."