This is pure speculation, but perhaps our Sean is not the shaved-chested dumbbell some think. He could possibly be a secret member of the Tagi alliance of Rich, Sue, Kelly, and Rudy. Maybe Rich convinced him to join up by giving him the role of spy (I get the feeling Sean needs to feel important). They send him to meet with the other tribe and what does he do? He asks what they've heard about Tagi. He DENIES the existence of an alliance he knows definitely exists to allay Pagong's fears. Later, per Rich's instructions, he votes for the obviously non-threatening Colleen and give's a B.S. reason for the camera (Rich knows that the CBS folk are out to expose his alliance and are the enemy).

Rich knows that the remaining Pagong will immediately suspect that he, Sue, Kelly, and Rudy voted out Gretchen and that Sean was completely in the dark about the entire affair. Sean is now sent to make sure that the remaining Pagong DO NOT form an effective alliance against one Tagi by spreading a morals-based argument along the lines of "let's not stoop".

Sean must then join the alliance in voting out the next strongest Pagong: Greg. If this is the case, the vote tally will probably read something like this:

Greg - Sean, Rich, Kelly, Sue. & Rudy against. Rich - Jenna & Colleen against. Sue - Gervase & Greg against.

If it goes down this way I think Rudy can kiss it goodbye next, as he'll feel bad about voting out Greg (an obviously strong male; just the kind Rudy hates to see go) and will make his distaste known. Rich can't suffer any dissention within the alliance, so Rudy is the target with Colleen and Jenna also jumping on board.

From here on out is anybody's guess, but I get the feeling that it's Gervase after Rudy. Rich's days are numbered once Gervase is gone, since the alliance has no real enemies left and turns against it's leader in a stunning mutiny.

Beyond that I cannot calculate, save to say I'm sure Sean and Sue cannot possibly be popular enough to win in the end

My money is now squarely on Kelly.

Of course, this is probably all bollocks.;)