Like you, I believe the artist created an album with the intent of all the pieces fitting together--sometimes creating a nice ebb and flow to the music.
If only that were true to all singers (note I didn't say 'artists' here.) You read the inside of many pop singers albums and see that each song was written by a different songwriter. Pretty impossible to have an ebb and flow to an album when many songs are written by different people. Especially common in the trendy, dancing, "I sing moderately but I look great" category.
I should note, I have great respect for some of those behind the scene writers. Some of them are very good at what they do and it's not their fault they are musically talented but born without a singing voice. Vice versa I suppose for the singers who use them, but it's tougher to swallow.
