Well i do think Chickie was smart. I mean he was a capo a multi millionare so he was smart. His problem was that he got seduced by the prospect of being boss. Phil Leonetti said that even though Chickie made a ton of money he simply wanted power
According to Leonetti he gave himself away when he asked the chickenman for a loan of 50 grand a couple of days before the hit.
Testa knew something was up and relayed his suspicions to Scarfo the evening before his death.