I can understand that as a capo - Tony might get involved with hits in person, but as boss of family would he realistically still directly whack people? - like the kid who shot Christopher.

Can you guys tell me how involved in executions
- capos and bosses get in real life?

Godfather Part II stresses the importance of buffers in Corleone family and button men and associates never getting direct orders from the top guys.

Does this still apply or is recruitment and trust such a problem that top guys are having to do the whacking themselves?????

Also how big is the difference between caporegime and capodecima. Are Larry Boy, Jimmy Alteri, Raymond Curto etc caporegimes or capodecimas?
What's the difference in practice?