Bulls:
PG Rose-----Rose: Much better now;yr. 3 v. Rookie= major jump
SG Gordon---Bogans: Bogans better on D; Gordon better O. I think Gordon is still a major net positive over Bogans, but Celticsblog loves to rag on Gordon and loves D, so who knows?
SF Salmons--Deng: Major upgrade
PF Thomas---Boozer: Major upgrade. Finally legit post presence.
C Noah------Noah: Significant upgrade. Yr. 2 to yr. 4.
PG2 Hunter----Watson: Downgrade (hunter had a proven playoff skill)
SG2 Hinrich---Korver:
SF2 ----------Brewer: I'd say overall upgrade at the bench 2/3; Better size for a true sf backup and Brewer/Korver provide specialized versatility
PF2-----------Taj Gibson:
C2 Miller-----Kurt Thomas: and including James Johnson, I'd say overall upgrade at the 4/5. Boozer and Noah can handle the 5 so it doesn't matter much what Thomas gives; Gibson is a very very good bench guy.
Celtics:
PG Rondo-----Rondo: Better now, but not as much better than Rose is compared to Rose as rookie
SG Ray---Ray: About the same, not much drop so far
SF Pierce--Pierce: About the same; drawing fewer fouls but shooting better (because of redistribution of roles to Rondo)
PF Davis---KG: Despite some green-glasses wearers, this is a major major upgrade
C Perk------Shaq: small but noticeable upgrade, but contingent upon Shaq looking like he does now in the playoffs
PG2 Marbury----Robinson: Significant upgrade, if he's used
SG2 House---Delonte: Should be an upgrade, if healthy
SF2 ----------Daniels: Should be an upgrade, if healthy
PF2 Scal------Davis:Major upgrade
C2 Moore-----Perk/JO: Major Upgrade
So both teams are drastically different, Chicago moreso.
In conclusion, I would be worried. The way the two teams are playing now, the C's look to be obvious favorites. A lot depends on Boozer's integration. Looking at the starter matchups, which, of course, is more relevant in the playoffs, I'd have to say Chicago has maybe improved more that the Celtics at the major key positions.
Scary team, we'll see.