"There's a lot of interest in the draft. It's great. But quite frankly, most of the people that are commenting on it don't know anything about what they are talking about."--Ted Thompson
I mentioned that in another thread, it is always a possibility with any player.
I'm sure Rolle was on GB's practice squad when the Texans signed him to their regular roster. I have a vague recollection that GB did something to try to keep him, which I think was just a practice squad salary increase, not a roster spot.
I don't remember anything about Rajion Neal's departure, other than that he bounced all around the league from practice squad to practice squad.
One player I recall who reportedly turned down GB and left for another practice squad was Hunter Hillenmeyer. It was said that the Bears promised him a spot on their active roster, but needed to make some other roster changes first. As I recall, he was on their PS only a few days.