I'd argue that Coe is more than competent, just, you know, detached most of the time. Lamb always knows what needs be done, just never shares, and often lets things happen until what needs be done happens on its own or is inevitable.

Coe has extraordinarily high SA and makes decisions immediately. They might seem impulsive, but when he acts, it is always with forethought.

(Yeah, Coe is our favourite character.)

Louisa too. Before Coe came along she was for sure the best agent of the bunch; between the two of them it's a tough call imo.

Although I think Standish might have a leg up on all of them, including (sometimes) Lamb... but I'm biased since she's my favorite :)