Deep reach here, but Brice Butler.
He played nearly the same amount of snaps (35) last week as Terrence Williams (41), and more than Cole Beasley (30). Neither he, nor Williams had a catch, which is a bit of a concern obviously...but the fact that he is getting snaps is a good sign. Solid size/speed combo and always looked good in preseason games with Oakland. Boy's gave up a 5th rounder for Butler and a 6th. He may just now becoming acclimated to the offense. 6'3, 215 lbs, runs in the 4.4 range.
Its a reach, but if he busts out you may want to be on the right side of the bust out. I grabbed him off the WW in a couple deep bench dynasty leagues as a lottery ticket type. Not too many options that are much better in Big D right now. If he is getting snaps, he has a chance.