Alastor nodded at the explanation. It made sense. And other than McKinnon and Tonks, there really weren't enough with the skills needed to field an full Undercover unit. They would just have to make sure they were assigned to the units where those skills were needed.
"Not sure I agree on cutting Narcotics. It's not only Voldemort and the Werewolf investigation that will benefit. You're looking at tracking distribution of illegal potions, shipment of restricted ingredients, poison manufacturing, 'pharmaceuticals' leaked to the muggle world, identification of potions used in other crimes. Essentially a specialist team who would be consulted by all other units. The numbers allotted may not be feasible. But, a small unit of specialists, three or four."
He passed the file back to Potter. "Other than that, it's a fair compromise between what we used to be and what we're forced to be now."