You know what happens when Nas strays to far away from his lane? You get "Nastradamus." You don't want "Nastradamus." You'd generally want Nas in that street poet/philosopher mode, as that's where he's always been at his best. Tim Duncan knew always to stay in his own lane, which is why he's one of the most consistent and reliable NBA players of all time. The "If it ain't broke, don't fix it" mantra is cliche, but Duncan is practically the living embodiment of that belief. Bank shots and fundamentals just happen to work for Duncan, and straightforward narratives and introspection happen to work for Nas. Fortunately, Nas has stuck to that formula more often than not. Both guys are the most consistent in what they do.