How did it improve his character? Besides you saying it I see no evidence of it.
First of all I didn't say it did, I said it could have. My initial post was in response to a comment that his walkout was definitely an act of weakness this team didn't need more of. I agree it was a bitch move we don't need to see more of, but at the same time he did return to face the music and the experience could have changed him.
We'll never know for sure though until he gets his body right and stays on the field.
Will he be the guy the superstar ballhawk Cowboys thought they were getting? Probably not, but I saw enough talent there that he could be a legit corner.
Better to keep him and sign some DL/LBs than dump him and have to grab another CB too.