Well philly was going around bad mouthing tony while tony was trying to cement his position as boss, so i can understand that one. I agree with hisenberg that the dumbest one was ralphie, taking out your top earning capo over horse was ridiculous.

"Let me tell you something. There's no nobility in poverty. I've been a poor man, and I've been a rich man. And I choose rich every fucking time."

-Jordan Belfort