One last aside: the wartable mechanic also works against Cullen, unfortunately. It turns him into the guy with the hammer who thinks everything looks like a nail.
*Inquisitor disapproves slightly* =w=
Cullen is a hammer and he's a hammer that can be used very effectively on the war table, if used in the right circumstances. He can even be useful in unexpected situations. Often, his plans do work like kidnapping the Venatori advisor on the road out of Nevarra or getting your soldiers a cook so they can have a nice meal at the end of the day. He is however limited, which is why he's not in charge and why he knows he shouldn't be. A wise man understands his limitations and allows others to help carry the burdens they can't. Cullen is capable of looking outside himself for help when he needs it and is able to recognize when he does. Those are lessons Solas could stand to learn.
If the Inquisitor uses him in a situation that requires, say, a screwdriver then they've only got themselves to blame. It's his job to look at the situation from the position of an army commander, he's obviously going to advocate for military. I have found him to be very perceptive though in some options, nuanced in others, and forthright about what he thinks. In the situations he's best for, he shines. In the ones he's not, he doesn't. I'd blame myself for misreading the situation before I'd blame him. The Inquisitor is the leader, I'm supposed to decide whether or not I want the hammer or the screwdriver.
Heh... I admit it. I do appreciate Cullen.
He's not suave like Solas and he's not an intellectual, but he's certainly intelligent and he is, at the very least, self-aware. I'm looking at you again, Solas. 