to Tommy Streeter and Danny Coale: the key is looking at the current roster.
Tommy Streeter is a big time talent with big time question. Certainly he should be selected by now and he might turn out to be a BIG steal. If he doesn't, then no big deal because it is the 5th round after all. Having said that, the Cowboys roster has two other players with Tommy Streeter's size and ability. Perhaps not as talented, but certainly with the same abilities.
Aside from Dez and Miles, there is 6'5, 210 lbs Andre Holmes, and 6'3, 200 lbs Raymond Radway.
On the other hand, there will be 5'10, 210 lbs Dwayne Harris, 6'1, 190lbs Kevin Ogletree, and now 6'0, 210 lbs Danny Coale.
I'm not saying that Streeter couldn't beat any of those 4 guys for a roster spot, but taken into consideration his negatives, the new philosophy RED is implementing in Valley Ranch, and the roster number, it's understandable why Coale was selected over Streeter.
Put Coale's " want to " into Streeter's body, and we'd be talking about a top 10 pick receiver.