Titans land bell-cow RB DeMarco Murray, solid first-week grade

The Titans hope veteran DeMarco Murray can provide a big boost to their running game. Alex Goodlett/Getty Images

A breakdown of the first week of free agency for the Tennessee Titans.

Most significant signing: Running back DeMarco Murray arrived in a trade, not as a free-agent signing. But he counts, as the Titans gave up only 13 spots of fourth-round position and signed him to a new, revised four-year contract that doesn't include crazy money. The Titans plan on him carrying a big load. Provided they revamp the line for him and use him the right way, they should get a major boost for a running game that has been anemic for too long.

Most significant loss: The Titans have lost no one they should have kept. And the only Tennessee free agent who has moved on is cornerback Coty Sensabaugh, who struck a deal with the Rams. Sensabaugh was the team's nickelback but played as a starter last season because of injuries. The Titans signed Brice McCain after he was cut by Miami but before free agency opened. McCain will contend for the nickelback job now. If the Titans do enough at cornerback in free agency, Perrish Cox could be bumped to nickel situations, too.

Player they should have signed or still could sign: If they wind up with Rashad Johnson, who recently visited, they can be fine at free safety. But they didn't show any interest in Tashaun Gipson as far as we know, and watched him go to division-rival Jacksonville. Sure, Gipson was costly. In free agency, all the top players are getting paid well. Gipson could be a guy the Titans regret letting go to a team they play twice a season.

What's next: The Titans have had visits from Johnson, guard Louis Vazquez, cornerback Antwon Blake and linebacker Terence Garvin. Vasquez could be a big upgrade at left guard, but he had a knee that was a big concern last season and cost him a great deal of practice time. Johnson quarterbacked the Cardinals' defense for the last couple of years and could be a great addition to replace Michael Griffin, who was cut in February.

Overall grade: B-plus. I like what general manager Jon Robinson has done with Murray, interior offensive lineman Ben Jones and receiver Rishard Matthews. They haven't done much on defense yet. And they have not been connected to any right tackles, so does it mean that Laremy Tunsil is the No. 1 pick and Taylor Lewan is heading to right tackle?