I think your safest play is Alshon. He's the least likely to not get anything at all. Hard to ignore Meachem's homerun threat, but if he doesn't get one, he might get a zero.
Thanks Treff! I had originally claimed Jeffery off waivers this week, but flip flopped (big surprise!) and grabbed Meachem (Monday night game) in case Gronk played. Gronk didn't, hence my question, and I took your advice Treff. Whew.