Said Top Dawg kept holdin on to it. He sent in two albums at the same time, and Top Dawg had planned to have a "TDE year" so he held on to it until after the other members put our their projects. That's why he was upset with him and was talkin about leakin his album before release.
No, I feel you, I'm not makin excuses either. Several tracks on it are
and some flow hard as hell, but I'm thinking the ones that are average are the ones that are much older, such as Tree of Life. Kendrick's Interlude was just a homage to Ab-Soul's Outro though don't look too far into it.