Forum post.
Dead Presidents
Since that’s what you need to game the system.
Going with the theme of serious and casual. I like Half Dead or Dead Rising, training to be Serious.
But I also like Stoch’s suggestion too.
Isn’t the newest alliance usually where you put your dead weight?
Let me just casually remark that you can be dead serious and still be dead wrong. 
Dead and Bloated
Dead WEIGHT
Dead Parrots. An alliance for those who aren’t retired, they’re only sleeping.
Dead (c)Heat
Dead to the Bone
Dead Nugent.
Or…per Holy Grail…Bring Out Yer Dead.
still like…
dead servers
dead mans chest
Dead to rights
Dead Bundy (Polk High 4 TDs…)
Evil Dead
I do like Dead Weight though.
Do you have a Dead Poets Society yet?
If you went with Dead-ly Sinners you would have a theme song…
Love the DeadyDavisEyes one.
How about RightSaidDead? (just fits under the character limit)
I like dead weight, but I would feel sorry for the guys you have to put in there. Don’t you think their self-esteem will suffer?
They are already dead.
Also, Dead Kennedys.
The only real choice here is Dead Parrots.