What unfinished business would that be?
Fernando Torres showed little or no respect for the club, the managers and the supporters in his last 18 months at Liverpool. He clearly didn't want to be here and left us in the sh*t on the last day of the transfer window. He also said he had joined a bigger club upon arrival to Chelsea and yet some supporters want him to re-sign? Are you mad? He's been very poor over the last two-and-a-half years, his work-rate is second to none, this is evident when he plays for Chelsea, but sadly gone are the days where Torres averages 1 goal in every 2 games, he's not consistent in front of goal.
I think he should seek a return to Atletico Madrid, Chelsea want Falcao, so I'd imagine they'll use Torres as a bargaining chip to seal that deal in January or next summer.