Posted by ESPN.com's Mike Sando

The closer we get to the NFL draft, the more we care about potential trading scenarios.

Teams generally like the idea of trading back in the first round. General managers want to add picks and reduce how much money they'll invest in a first-round choice.

Of course, moving back requires finding someone willing to move up. And before a team can move up, a team must have sufficient draft capital.

The chart shows how much draft capital each team possesses heading into this draft, based on picks held in the 2008 draft. I have assigned point values for each pick using the familiar draft-pick value chart popularized by former Cowboys coach Jimmy Johnson.

Based on the chart, Atlanta has more trading capital than St. Louis, even though the Rams pick higher in the first round. Note that compensatory picks carry no value for the purposes of this chart because NFL rules prevent teams from trading those choices.

Those wishing to play around with the numbers can download an updated draft-order file with point values assigned to each pick (free Excel viewer here for those without the program).

Philadelphia has 11 draft choices without possessing much trade capital. The Panthers draft 13th overall, but they have the seventh-most points for trading, thanks to a third-rounder from the Jets.

New England is the only team with a winning 2007 record to crack the top 13 slots on this chart. Dallas is 14th. The Patriots forfeited another 600 points when the league stripped them of the 31st overall choice as punishment for Spygate.

Houston has the least amount of tradeable draft capital among teams without winning records last season. Also: The 49ers parted with 1,500 points after they traded their first-rounder to the Patriots. They lost relatively little value when the NFL stripped them of a fifth-rounder as punishment in the Lance Briggs tampering case.

In theory, Cleveland could trade its entire draft -- four choices worth a combined 99.1 points -- for the 101st overall choice, worth 96 points and currently held by the Rams. Browns general manager Phil Savage could then take the weekend off, checking in just long enough Sunday to make a selection.