Cannavaro in #28 is rather ridiculous in my opinion, this guy already has a status in Italy and is wearing the captain's armband, yet he wears #28 instead of a more normal looking #5
Same for Mutu, I still think #18 looks ridiculous.
In my perspective, I would retire those "not-so-famous" numbers in betwwen 1-23. IMO numbers from 7-11 r "untouchable" since there r many legends and fantastic players that wore those shirt numbers b4 and it would be ridiculous to retire them. And these 5 numbers r mainly with amazing players...