That particular hex missed its mark, by Charlie's expression.
What he answered was the implicit question. "We need more healers, more theorists, more field agents. We need a building twice to three times the size of the one we're in and a staff to fill it. So, no, I'm not telling you that. Goldstein and Borage and whoever the new person is will need to brush up on their combat spellcraft. There's not a soul in the department who couldn't stand more practice, or more cross-training in basic healing, and, for that matter, basic theory work. For all our brilliant arithmancers and theorists, who gave us the key to breaking the wall, Quint? Our lawyer."