Just to chime in on the 'hair' issue here.
It is obvious to me, from this evening's episode and from the previews of next week's episode, that Stana is getting fed up with dealing with the long hair.

Perhaps we're in for another hairdo change for Kate Beckett.

One can only hope.

Tank (who will admit that Stana, being a tall woman can wear longer styles easier, but he still would like to see her character go shorter again)