Hi Furio. For a more reliable chart I go with what Scott has posted. He would have the most information. And its almost exactly yours except for Vincent Signorelli(who once again I've never heard of ever and I've researched the Detroit mob for almost 20 years), Joseph D'Anna is going to prison so I assume he'll be temporarily replaced(his brother maybe) and I believe he's posted that there's doubts as to whether Paul Corrado is actually involved. So it would look something like this:

Boss: Jackie Giacalone
Underboss: Anthony Lapiana
Consigliere: Anthony Palazzolo
Street Boss: Pete Tocco

Capos:
1. Joseph Giacalone
2. David Aceto
3. Joseph D'Anna(likely to be temporarily replaced)
4. ???