I don't recall saying that Datello is not in Truscello's crew, only saying that Steve and Joe have a long history together, so it is possible that the Capo was cut out from that order. Crea Snr ordered it anyway.

"I have this Nightmare. I'm on 5th avenue watching the St. Patrick's Day parade and I have a coronary and nine thousand cops march happily over my body." Chief Sidney Green