This is my Thursday column on Colin Kaepernick. When Colin Kaepernick says he sees pass coverages, does he really see pass coverages? It is the essential question about him as an NFL quarterback. The question might have seemed impertinent before Sunday night. But, at his postgame press conference, Kaepernick kept bringing up the Bears’ coverages without being asked about them. He was coverage-obsessed. This after he had thrown three interceptions….