Free agent series: Defensive line

Welcome to Day 2 of our free agent series. On Monday, we looked at Miles Austin, the restricted free agent wide receiver.

Today, it's time to look at the Cowboys defensive line.

Of the Cowboys' 13 restricted free agents, four are from the defensive line and each played well last season.

Who are they? Stephen Bowen, Jason Hatcher, Marcus Spears and Junior Siavii.

Should they keep them? Yes.

How much to pay? The Cowboys will probably tender all four of these players, but Spears, an end, was looking for a new contract after his rookie one expired following the season. Spears, a starter who had 50 tackles, 2 1/2 sacks and a career-best tying 16 quarterback pressures, should return.

The Cowboys will probably offer Spears, a five-year veteran, a first-round tender of $2.621 million for 2010.

Under normal conditions, another NFL team might scoop up Spears. But with the 2010 year expected to be uncapped because the owners opted out of the collective bargaining agreement, and teams probably not willing to spend as much, we doubt Spears will go elsewhere.

Bowen, an end, has shown the most upside among the backups by playing well on passing downs last season. He compiled career highs in sacks (three) and quarterback pressures (35). He had two more pressures than two-time Pro Bowl nose tackle Jay Ratliff.

It's hard to say what to give Bowen, a four-year veteran. The Cowboys value him a lot, but do you place a second-round tender on him at $1.759 million or a first-round tender of $2.521 million?

Hatcher, another four-year veteran who plays end, came on strong toward the end of the year after finally discovering a groove after offseason surgery. Hatcher had six quarterback pressures the last four weeks of the season.

Hatcher most likely will get a second-round tender offer of $1.759 million.

The Cowboys like Siavii's ability to back up Ratliff at nose. He's had some moments, like the seven-tackle, one-quarterback pressure performance vs. Atlanta, and he picked up three solo tackles vs. Washington. But his snap count changed.

He played just 13 snaps the last three weeks of the season, including one play in the regular-season finale vs. Philadelphia. But in two postseason games, Siavii played 27 total snaps.

Siavii could get an offer of $1.176 million or a minimum salary of much lower than that.

Other free agents worth looking at this position: This is a strong position as evidenced by Aubrayo Franklin, Vince Wilfork and Richard Seymour getting franchised. Pittsburgh locked up Casey Hampton with a new contract. Also, Julius Peppers, who wouldn't mind playing for the Cowboys, is an unrestricted free agent. Dallas won't dip into the free agent market here because it likes its depth at this position.