Marlo becomes the new power in West Baltimore by default. McNulty and the police search Stringer's apartment and find it extremely clean, stylishly furnished, and tastefully decorated, far from their expectations of a drug kingpin.
After Marlo takes over West Baltimore, McNulty and the police find Stringer's apartment remarkably clean, well-furnished, and aesthetically pleasing, which contrasts with their expectations of a typical drug kingpin's residence.