The guy barney was made 20 before him and since chin was a violent guy personally killing guys or shooting i think he would have made barney do the same to tap him as acting boss in 1990 before cali was made. And just from reading seems theres no histroy of violence with him or hed be in jail lot more. I think theres plenty of other mobster in his own family alot stronger. In bk you have the whole persico clan who probaly dont see him as there equal. All guesses.