Something that always bothered me about the idea that the planets accreted from the same matter as the Sun, and in the same process, is the direction of the rotation. If the whole thing is rotating (due to Lorentz forces in an external magnetic field, or whatever), we can understand why the Sun rotates. But if inflow bands are going to condense into planets, they don't have the same overall rotation. In fact, in a cyclonic inflow band, the inner side of the band is moving faster than the outer, because of the Rankine acceleration nearer the source of the centripetal force. This means that if the inflow band condenses, the relative motions within the band "should" result in anti-cyclonic rotation. So all of the planets should rotate in the opposite direction as the Sun. Thus the accretion disc theory has a boo-boo.

But what if the dusty plasma is condensing, and what if the whole thing has angular momentum, but what if it isn't all converging on the same spot? You could get a bunch of little condensations at various points near the centroid of the dusty plasma, and they might all condense for the same reasons, and rotate in the same direction, but each as discrete entities.