Offensively
Average to Down Slightly.
He went from not being able to throw an entry pass in the low post last season, to average at it this year. He started off the season terribly, but perhaps he has been taking lessons from Duhon and Pike (our best entry passers, followed by Deng).
Obviously he is taking more shots and shooting at a lower percentage, so his shooting has been the largest negative offensively. While Kirk is still pretty bad at getting to the line (see the Philly game on that 1on1 layup attempt), he has 30 more FTA in 12 less games, bringing his average up to slightly better than 3FTA per game. I'd like to see that number up around 5.
He is averaging 0.2 less assists per game, but his TOs are down 0.2 as well, so the assist/TO ratio has gotten better. He is 11th in the NBA in assists, and only plays about 1/2 to 2/3 of the game at the PG spot. When he and Duhon are in together, Duhon is running the offense about 75-80% of the time to start the game and the second half.
Defensively
Good improvement.
Kirk is not picking up a lot of ticky tack fouls that plagued him his rookie season. Yes, there have been games this year that calls have taken Kirk out of his game, but they are nowhere near the amount he was seeing last year. It seems that since the first Bulls winning streak, Kirk has been getting respect from the refs as being a good defender and has been getting some non-calls that would have been picked up last year.
His on the ball defense has made significant improvements as well. His hands are much more active. Last year, he rarely would knock the ball loose from a dribbling defender. Most of his steals came from good body defense forcing the ball loose or help on their bigs in the post. This season, most of his steals seem to come from the perimeter or off of offensive rebounds. Again, his hands are just that much more active defensively this season.
He has shown slight improvement in his player rotations. He was one of the few who played the zone well last year, and his player rotations seem a quarter to half a step quicker this season (as has the whole team). I don't think he has actively improved in this area. I think he is just more comfortable with the system and where he is supposed to be when.
Rebounding
Good Improvement
This is an obvious area of improvement. When the team is rebounding well, Kirk immediately goes to the outlet in order to try and push the ball. When the team has given up a couple of offensive boards, you often find that it is Kirk (or Duhon/Nocioni) picking up the slack. For a 6'3" PG averaging over 4 rebounds per game, we can't ask for a lot more. If Tyson were not on our team, I think Kirk would be pushing 5 boards a game (and no I'm not saying Tyson is stealing rebounds away from Kirk).
Intangibles
Outstanding Improvement.
I remember a post game interview last year towards the end of the season where Skiles said he asked in the huddle if anyone thought Kirk wasn't the leader of this team. No one said no, and Skiles told Kirk to go out and be that leader. Well folks, this is the season where we have seen that. Kirk is the floor general, and along with Tyson is the emotional leader. In only his second season, Kirk is your classic lead by example type of guy (and this attitude is what makes him my favorite player). No one can really debate that this is not Kirk's team, yet you'll never hear Kirk say anything but this is "our" team.
Overall
Average to Above Average Improvement
While offense is half the game, I still say he has improved this season vs. last for all the aforementioned reasons. Really, the only thing that has regressed in his game has been his shot selection and FG% (correlation, no?). That said, Skiles has repeatedly said that Kirk's shot selection is fine, so maybe some of those early 3-pointers Kirk takes in the shot clock (and we all hated Jamal doing last year) is a result of the system.
Remember shooting 33% from 3PT is the same efficiency as shooting 50% from 2PT. Maybe Skiles is telling his best 3PT shooter on the floor if he has space in transition to take the shot. Personally, this isn't my style, but it could be Skiles style... I really don't know. If this is the case, then a lot of my comments on Jamal's shot selection last year were unwarranted (although he still had below average shot selection not counting those 3PT early in the clock).