"Pair them with shooters and good things will happen".....exactly the point here. Playing those two with Sanogo means you have only two shooters tops on the floor at the same time. Two bigs with a wing who can't shoot is not a recipe for a good offense.
Gang rebounding has nothing to do with two bigs and more to do with making sure everyone on the team - especially guards - goes after it. Basic stuff.
Centers tend to have higher percentages not because they're shooting "better" shots, but because they're shooting from closer in. Not going to go through the whole 3 v 2 pointer thing and why a higher fg % isn't necessarily indicative of a more productive offensive player (though I do agree UConn has become too reliant sometimes on the three ball, it's fundamental basketball analytics here - and they looked good from downtown last night).
None of that really addresses what I was saying earlier though. Do you think DC is up for it conditioning wise playing that many minutes? What happens when they're in foul trouble? Who are you playing around them to create any sort of offensive spacing? Outside one or two nice passes (AS last night!), what from either big has shown you that they should be running a high/low post offense?