Have a TP. I am 110% on board with everything you said. Even though Monroe isn't a defensive ace, he is still a legit center with height, length and strength. I think our defense would be fine with so much height between him and Kelly.
Of course it'd be preferable to somehow trade into the top 3 and draft Cauley-Stein, Towns, or Okafor. But barring that option, Monroe, Asik or Jordan are just what the doctor ordered.