Kim Klement Neitzel-USA TODAY Sports

Cowboys Nation is of course champing at the bit for the next chapter in roster-building, which arrives with the start of the new NFL business year on March 13.

Well, there is the March 11 start of the "legal tampering period,'' so that satisfies some of the "champing.'' 

And then what? A flurry of Dallas Cowboys signings, big names rolling into The Star here in Frisco, all riding Jerry Jones "All-In Magic Carpet''? 

Maybe. But more likely? Maybe spending both aggressively and wisely. ... which might require some patience.

As a test case, we give you Alvin Kamara.

But wait ... Kamara isn't even a free agent! True. But check out the New Orleans Saints' cap situation, as they entered the weekend at $40 million over the new $255.4 million ceiling.

Something's gotta give in New Orleans. ... and Kamara, who turns 29 at the beginning of the season while coming off the poorest season of his career, has an APY of $15 million a year.

That puts him there with the 49ers' Christian McCaffrey, right at the top of the charts. We bet the Saints cannot live with that.

The Saints can restructure Kamara's contract this offseason, but the piper will still eventually be paid. Trade him? Cut him?

If New Orleans dumps Kamara, it can save $4 million. Can they hand the ball to Kendre Miller, their third-round pick from TCU from a year ago, and move forward that way? 

If Kamara is a free agent - and doesn't cost but a fraction of that $15 mil - could that be a Dallas marriage?

A reminder: We're using Kamara more as an "example'' than as a specific Dallas target. But we think it's helpful, because while Cowboys Nation's "in box'' already seems stuffed with running back names - including free agents like Saquon Barkley, Josh Jacobs, Derrick Henry and Dallas' own Tony Pollard - more names could be on the way in.

And it might take some patience to watch it unfold ... and then to make the best version of an "all-in'' move.

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