Greg Cox wrote:
Rick made the wrong decision about Tyreese's group, though, but it was all about him being crushed by responsibility. It's significant that he was about to change his mind when Laurie appeared. His subconscious can't deal with more potential guilt.
I don't know. Rick was only half
-wrong about Tyrese's group. Two of them were already plotting to jump Carl and Carol and seize control of the prison.
seen that Tyrese is a decent guy who wants to do the right thing, but Rick has no way of knowing this. He hasn't seen what we've seen.
Rick has had dissent from people in his group who wanted to take a questionable course of action; most notably Shane, but also Andrea and others. Tyrese has been very patient and civilized and those who were left at the prison have become familiar with him. Rick was in Tyrese's position at the CDC and with the voices on the phone, so if he were in his right mind I think he would choose differently.