If reinstated, he'll bump out others for that position and then probably be suspended again during the season.
That's a realistic fear. I'm not sure how solid the evidence is that he stayed clean while out, and even if he had, it's reasonable to think he'd slip again.
This year, at least, he's extra if he plays. We shouldn't count on him til he gets through a couple of seasons clean.
But it's not like we'd be dropping Reggie White to keep him. We picked up Ealy for nothing. Last 53 roster I saw, Tapper was projected gone. Congentical bad back who can't make the field.
If we really have just too many wonderful young DEs, I can live with cutting Crawford too.
I think he's more than worth the risk of a roster spot. If our 54 is half as good as Gregory, we've got ourselves a fantastic team.