Ross is the Mastermind behind the mess in 19
this is my thoughts
- having relationship with a subordinate.
- knew about Beckett drinking (and he been blackmailing her to look the other way).
- been warned about Beckett by many members of the team and ignore them.
- asking Beckett to handle Maya, to keep her hand clean.
- knew Beckett been punishing (bullying) Maya for 6 months (when the bullying supposed to stop, isn't 6 months enough?).
- damaged the system (protocol) that why Beckett couldn't report or transfer Maya (after the bottle incident) and why Maya have no where to go (with Beckett bullying).
- risk the team life every time they go out on a call with Beckett.
Ross job is to make sure everything is OK, the fire fighters fit for work, protocol is followed.
all this mess because she want to sleep with Sullivan, what she told Maya? something about taking responsibility?
I'm NOT saying she the only one responsible, Maya should been reported for the blackmail (and skip the 6 months of bullying). Beckett should got the help he need (bullying Maya didn't help his relationship with the team)