Lenny did NOT order the hit on Joey. In fact Lenny knew nothing about it until the next day. A more or less "independent" did it to gain favor with Lenny. Go figure, he was a US Marine trained sniper.

BTW: Zebo's last name is spelled Zottola. Yes, Henry was sent to keep an I on Lenny but at that time he was more than "only a Soldier". At that time Michael only spoke with Zebo and Chuckie Porter. Call them what you will, but they were at the top of the food chain under Michael.