I sort of took that he is saying that Riley might not be the best guy currently on the team to take that role. In past we used Neck over say JD to hold down first when FF actually took a day off. I think he is saying playing first is not just a throw a glove on and stand there sort of position. And by no means does that mean Olson plays everyday... no one on the team should be playing 150+ games... Twitner is a failure in that regards. But I don't think it is dumb to say Riley might not be the best choice to fill in just because any competent 3B should be able to...