So what? We got him for one year, and traded away what appeared to be a pretty bright prospect for that one year (and it wasn't an attractive expiring contract, because Hendo was coming off at $6mil and Vonleh was cheap; leaving everything alone would have gotten space and Vonleh). And if you re-sign Batum, you're likely re-signing his mediocrity at $12 mil. So what it really comes down to is whether one year of Batum with the chance of re-signing him on a bad contract is better than several extremely affordable years of Vonleh with the chance to be his career home. I say no way in hell. Absolutely awful trade, IMO.
The more I think about it, the more pissed I get. Plus, if the Zeller tweet was legit and not a smokescreen, it means that Hornets had, a few hours previously, chosen Vonleh over Zeller. Then they jump and dump him for Batum. This is Cho pulling a Marty Hurney and trying to save his job by an incremental increase in wins next year at the expense of the long-term well being of the team.