PITTSBURGH -- Despite an avalanche of new contracts from Day 1 of free agency, more than half the ESPN 150 free agents still are available. The Steelers moved quietly through the first day, as is customary for the franchise, but they have been working the phones.

If the team wants to get aggressive, it will have plenty of options that wouldn't crash the salary cap.

Kevin Minter, LB, Arizona: One of the league's hardest hitters could fly around the middle of the field for Pittsburgh if Lawrence Timmons leaves. Could command a hefty price, though.

Morris Claiborne, CB, Dallas: Baltimore is interested in him. That's usually a good sign. Claiborne has range and natural coverage skills but has put together one banner NFL season in five tries.

Prince Amukamara, CB, Jacksonville: Physical press-man corner who has had problems staying healthy. Could be affordable after playing for one year and $5.5 million in Jacksonville in 2015.

John Simon, OLB, Houston: Tough linebacker who will play through injuries and has garnered praise from Texans coach Bill O'Brien. Doesn't have huge sack numbers but can get the job done.

Darius Butler, CB, Indianapolis: The Colts want to re-sign Butler, who turns 31 next week but has recorded at least three interceptions in four seasons.

Brandon Flowers, CB, Los Angeles Chargers: Has spent extensive time on injured reserve with injuries, including concussion issues, but when healthy he made a lot of plays for the Chargers.

Gerald Hodges, LB, San Francisco: Former Penn State standout was the 49ers' best linebacker against the run last season. Would be an intriguing option as a third linebacker alongside Ryan Shazier and Vince Williams.

Marcus Cooper, CB, Arizona: The Steelers have contacted Cooper, a 6-foot-2 defensive back with athleticism who had four interceptions a year ago. The Jets reportedly are interested.

Kendall Wright, WR, Tennessee: Wright's stock plummeted after a 29-catch, 416-yard contract year in Tennessee. But he posted a 1,000-yard season in 2013, has adequate speed and will be affordable.