Trent Green's agent Jim Steiner said Thursday night he believes the Dolphins are willing to slightly increase the worth of their offer to Kansas City, turning the sixth-round pick on the table into a conditional pick. ''I think they'd be willing to conditionalize the sixth-round pick,'' said Steiner, who spoke to the Dolphins as recently as Thursday afternoon. ``They could make it higher based on performance [during the 2007 season].''