Halfway through Season 5. SPOILERS BELOW
A little Soprano-y in that it is clear from the beginning of the season that the show is going to kill off a lot of key characters. I was very disappointed in the way the show killed off Proposition Joe. Joe outsmarted Barksdale and Bell, who were much smarter than Marlo. Joe would have seen Marlo coming a mile away, especially once Butch was killed. A guy like Joe can skip town in about 2 hours if he needs to. I thought it was a lazy way to get rid of him. Also, the Greek would never have anything to do with a renegade street thug like Marlo. The show should have been a little smarter about both developments.
Anyone who has read the dynamics of gang wars knows that if one group emerges more powerful, the other gangs typically go after that group to restore balance. All these gangs have muscle, yet they are all sitting around a Best Western waiting for Marlo to take over their territory one at a time.
I also don't get the plot line with McNulty and the fake serial killer. I can see a cop taking that kind of risk to cover his own ass, but would a cop really risk extended prison time just to take a shot at taking out a drug dealer? Especially since no one believes it.
Finally, the idea that the city would kill an investigation of a crew that had left 22 bodies is crazy, even for a fictional TV cop show.
The story was so tight the first 4 seasons, but it feels like the writers got lazy in season 5.