Going with some actual scares and mysteries; been lacking in those recently
Who is feeding the walkers? Probably the 'messed up' sister (but would she be up late at night and able to get out? So maybe one of the Governors lackeys (or the Gov himself, since Michonne cant find him) from inside?)
The final scene was weak. Who would be so sloppy dragging two bodies out and burning them in just some random place and leave the bodies to be found? Maybe this gives Tyrese something to do; what a waste of time he's been so far
last, I know its odd, but I like the Michonne/Carl chemistry (totally non sexual type) They should just go off alone on total beast mode on all walkers across the country