Also saying who was GM at the time they were drafted completely ignores the most important part of credit: how they were developed. You can be a great grocery shopper, but the food is going to suck if you aren't a good cook.
In this analogy, Avila was slow to learn how to cook and had Dave Littlefield as the chef and he was searing with non-stick and being careless with raw meat, but bought some nifty appliances he didn't know how to use at the end. They brought in Harris who knew how to use them and was able to make some banger meals.