I'll start

Chalmers/Telfair
Mayo/Foye/McCants
Brewer/Gomes/Carney
Jefferson/Smith
Pekovic*/Booth
This roster can play defense (and offense too)
Team would play their natural positions
We would be younger
Match up better to Portland and other teams
OJ Mayo is number 1 (leads all rookies with 21 PPG) on the rookie rankings and Chalmers is 7 (leads all rookies in steals and averages 5.1 APG). Kevin Love is 10th. Of course rookie rankings shouldn't be considered absolute fact, it still it gives an idea of how most rookies are doing.
Currently we have this to look forward to (including Pekovic)
Telfair/Foye/Ollie
Miller/McCants
Brewer/Gomes/Carney
Love/Smith
Jefferson/Pekovic*
Lineup doesn't trust each other
cant play defense
1-6 team
players out of position