I disagree on the second point though. Young showed himself to be completely overwhelmed, both offensively and defensively. Despite Young's AAA numbers being slightly better, I just can't wrap my head around him being able to contribute more than Mervis over the next 2 weeks.
And if this does accurately reflect how the Cubs organization views Mervis, then they probably have to trade him for whatever low level minor leaguer they can get this offseason. It doesn't make sense to dedicate a 40 man roster spot to a 26 year old AAA first baseman who is that low on the depth chart.