Fantasy fallout: New RBs keep emerging, but do you want them?

It feels like a new running back class keeps popping up every week in the NFL, thanks to injuries and ineffectiveness.

That’s certainly true this week, with new options emerging in New York, Chicago, Philadelphia, Miami, Detroit -- and of course Pittsburgh, where Le’Veon Bell will make his much-anticipated debut after serving a three-game suspension.

But are any of these newbies actually worth getting excited about? Our NFL Nation crew is here to guide you through the RB Class of Week 4:

Dwayne Washington, Detroit Lions. It’s hard to get too fired up over a running back for the Lions after they ranked 32nd in the NFL in rushing yards last year. But the rookie seventh-round pick might be the…