Determining which players are available ahead of the NFL trade deadline isn't always a cut-and-dried process.

Look no further than last week's deal that sent Joe Flacco from the Cleveland Browns to the Cincinnati Bengals for evidence of how fluid things can be.

"The Joe (Flacco) trade took us by surprise," Browns coach Kevin Stefanski said after the deal. "Not something we saw coming. They called us … They wanted Joe."

If only other teams had it so easy in prying their players of choice away from their current organizations.

With the Nov. 4 deadline looming, more deals will assuredly come together in short order. But even with a few teams positioned to become sellers as their seasons continue to sink, there's been little clarity about which figures are actually on the block.