Having already acquired Chris Givens and Will Davis via trades in recent weeks, the Ravens will continue to explore ways to upgrade the roster. However, as Jeff Zrebiec of the Baltimore Sun writes, the club probably isn’t just one player away, so it’s unlikely that Baltimore would give up multiple future draft picks or other assets to plug several holes.

Let’s round up a few more items from across the NFL’s two North divisions….

• The Ravens are off to a disappointing 1-4 start, but head coach John Harbaugh said on Monday that he’s not considering making any changes to his coaching staff, per Clifton Brown of CSNMidAtlantic.com. “Our coaches are doing a good job,” Harbaugh said. “We just got to collectively find a way to finish games and get the job done. We’ve got tough challenges that we’re facing, but we’ve got just the men for the job.”
• Free agent linebacker Joe Mays is working out for the Browns today, according to Adam Caplan of ESPN.com (via Twitter). Mays, who turned 30 this year, is well-traveled, having started games for the Broncos, Texans, and Chiefs since 2012.
• Center John Sullivan, who is on the IR-DTR list, and cornerback Josh Robinson, who remains on the PUP list, are optimistic about returning to the Vikings‘ active roster in the coming weeks, according to Chris Tomasson of the St. Paul Pioneer Press, who notes that the club will have to make at least a couple roster moves to create room for the returning players. Robinson is eligible to return as early as Week 7, while Sullivan could be activated for Week 9.

The Ravens, hit hard by injuries in recent weeks, have made some changes on the defensive side of the ball. The team announced today that has cut veteran outside linebacker Jason Babin, along with cornerback Rashaan Melvin, promoting cornerbacks Asa Jackson and Charles James to fill the open spots on the active roster (Twitter links).

Babin, signed by the Ravens following the season-ending injury to Terrell Suggs, was inactive for his first two games with Baltimore, and barely saw the field in his second two games. Despite his 64.5 career sacks, the 35-year-old clearly wasn’t a big part of the Ravens’ plans going forward, so it makes sense that the team would part ways with him in order to re-stock a depleted secondary.

Melvin has also been frequently inactive for the Ravens in the first few weeks of the season, so the team decided to give the two defensive backs on its practice squad a chance to earn playing time on the 53-man roster, with Jackson and James receiving promotions.

Jackson, 25, filled in last season for the Ravens when multiple cornerbacks went down with injuries, starting six games and recording 28 tackles. James, meanwhile, has seen most of his limited regular season action on special teams. He was cut by the Texans prior to the season.

The Ravens also announced a pair of previously reported moves, confirming that they’ve signed cornerback Shareece Wright and placed cornerback Will Davis on IR (Twitter link).