Atwater is so respecful of Voight and always follows his orders. Where as Halstead (Jay) is disrespectful to Voight and went as far to tell him that he didn't trust him anymore, plus he always calls Voight out in front of the entire team.
I think it's long overdue that Atwater gets a larger foll in the series. As far as Jay, I think Voight needs to get rid of him. When he's on assignment and disagrees with Voight, he just does what he thinks is right in violation of Voight's orders. He's no longer a team player and can't be trusted. Last but not least, it's time for Ruzek and Burgess to get married. It's obvious that they Любовь each other. Please give Atwater a еще important roll and get rid of Jay!! Make the audience happy and keep them satisfied.