Multiple examples throughout Final Fantasy XIII-2, but one that stands out is that Sazh, who is in the posse's Paradigm Pack, is still in his ship and saying he'll lend firing support on the Final Boss... in spite of being right with them for a majority of the game.
Also, the posse discusses why the party didn't just take Vanille and Fang out of the crystal pillar and let it stay there, rather than worry about them literally the entire game.
