I'm loving it, but then I sort of have an attachment to Lennie James. He's frakking awesome.
I think "Gale" is supposed to be a little piece of comedic relief.. although it isn't really playing out that way.
I think its kinda a double-edge, they are trying to go along the 'dirty-cop' shield angle - which can be hard to incorporate comedy that isn't fake. Any real comedy moments between the two mains, will sort of deteriorate the dire-straight situation they are both in right now.
I think this show just needs more time and viewership to find its own.