It's not like Lippi had a choice when he was picking the 4th defender. I doubt Lippi thought he'll need the 4th cd at all.
What choice did Lippi have ?
Juve had only Cannavaro, Inter had only Materazzi while Milan had Nesta - these 3 were the only 3 class central defenders.
The rest :
Maldini ( Milan)
Dainelli, Gamberini ( Fiorentina)
Stendardo, Siviglia (Lazio)
Ferrari ( Roma)
Sala, Falcone ( Sampdoria)
Terlizzi ( Palermo)
Bonera ( Parma)
Maldini was too old and he played his farewell match 4 years earlier while the others are average. It was between Bonera and Barzagli and Lippi has chosen the Palermo man.
Big deal.
If Marquez was Italian he would have been the 4th choice back in 2006 and he would have been the 4th choice now, with big chances to be starter after 2 years when Canna and Matrix will retire.