Calling this season a "failure" because his team missed the playoffs, Baltimore Ravens owner Steve Bisciotti says changes will made this offseason but a radical makeover will not be necessary.

One year removed from winning the Super Bowl, the Ravens went 8-8 and missed the postseason for the first time in six years since John Harbaugh took over as coach in 2008.

At a news conference Wednesday, Bisciotti said, "When you have a short window of failure that comes out of the blue, the key is not to make wholesale changes."

Baltimore's biggest problem was a running attack that ranked 30th in yardage.

Harbaugh says Juan Castillo, who had the title of run game coordinator, will have similar responsibilities next season as the offensive line coach.