Sure he made a bad decision, but that's the essence of his character. This show is the anti-Lost, for some reason nobody can keep their mouth shut. A typical exchange on Lost, "What did that note say?" "Nothing". But on this show, "So, who's gonna tell Daryl we handcuffed his brother to the roof so the zombies can feast on him for the rest of the day?" Not even a thought of keeping that to themselves. Same here, Rick could have just kept his mouth shut and blamed somebody who had just died for the murders. Instead, he will certainly piss Daryl off no matter what story he comes up with. Which will probably be to tell Daryl that he dumped Carol on the side of the road. Yeah, I'm sure Daryl will understand. Not sure why Rick thinks he's more valuable than Carol at this point anyway. She's adapted better to zombieworld than he has.
Yeah bullshit. If they told Daryl a lie back then, it would have come back on them even worse when they found his brother alive. Carol's decisions proved her untrustworthy and dangerous to the group so no she isn't more valuable to a large group.
Huh? Why would they assume they'd find him alive? He was handcuffed to a roof with zombies knocking down the door. And how is Carol untrustworthy and dangerous? She took care of future zombies that were inside the prison. I'd rather have her than Rick for damn sure.