Dallas is a double-edged sword.
Yes, Jerry makes some dumb decisions that cost the team. However; since he is the GM and the owner, he can sign people who were involved in a murder case and went undrafted for pennies on the dollar or any other problem child.
If Ruggs were somehow not going to go to jail and were available(he is going), he would be wearing a Cowboys uniform. Imagine the receiving corp with Ruggs added, as a c heap signing, to the already potent receiving corp.
Watson with his allegations? If Prescott were not on the team, Jerry would be very interested in him.