Or sell both Tacchinardi and Appiah, get Kompany who can play both as a centre back and a defensive midfielder, and purchase a creative midfielder.
GK - Buffon, Chimenti*, Bonnefoi
RB - Zebina, Birindelli*, possibly a new signing
LB - Zambrotta, Chiellini, Pessotto*
CB - Thuram, Cannavaro...