re: Cordarrelle Patterson. Worth a stash or droppable?

I've been eyeing Holmes more than any other free agent WR. Seems to have plenty of upside and with the Raiders always playing from behind and Carr not afraid to air it out seems like he can at least end up being a good flex option. I might just cross my fingers that no one picks him up and give Patterson one more chance week 7. Holmes will likely be covered by Patrick Peterson this coming week so if no one picks him up this week then I might able to just buy low on him next week and grab him if he falls off the radar.