But I also see why Harbaugh made the change... but no doubt it's damn risky

Truth be told the best solution would be to use both guys... I know that would come with it's own risks but I see a lot of upside there are well. Smith does what Kaep doesn't do well and vise versa. So you start Alex and if it looks like the game is going the direction of needing more big plays you bring Kaep. It's not that Alex can't lead comebacks because he has, more than a few. But one just needs to look no further than the Giant game this year to see Alex is much more comfortable when he can play his game... I say let him and let Kaep play his. Of course I think there's a better chance at seeing Willis line up at fullback but I do think there's merit to the idea.
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