Shame they couldn't have wedged Army into the final few episodes at some point.
One thing I enjoyed about the seventh season is the way they brought back some of the guest stars from the previous six.
If nothing else, it allowed them to write one of the rudest lines in the entire history of the show:
"Did bad shit go down between us? I don't...I don't remember."
"You don't remember whose cock you gagged on this morning, either."