Point guard: Reggie Jackson has replaced the injured Russell Westbrook. Big dropoff.
Center: Kendrick Perkins remains. He's better defensively now than in 2011, but his offense has regressed.
Power forward: Serge Ibaka remains. He's gotten much better over the two years.
Off guard: Thabo Sefolosha remains, and he's supplemented his expert defense with solid 3-point shooting.
Wing: Kevin Durant remains. Fantastic then. Better now.
Sixth man: James Harden has been replaced by Kevin Martin. A downgrade. Not that Martin doesn't have his moments.
Backup point guard: Eric Maynor, who was excellent in 2011, is gone. Derek Fisher sort of fills that role, but not really. Durant might be considered the backup point.
Backup big man: Nick Collison remains. The same yesterday, today and forever.
Specialist: Daequan Cook was a 3-point marksman in 2011; now the Thunder will call on defensive stopper DeAndre Liggins for a few minutes.
Backup center: Nazr Mohammed played quite a bit in that 2011 series and was effective, averaging over 12 minutes a game. Don't expect Hasheem Thabeet to play as much.