I asked that very same question to the CAFCASS officer ... how do you know your doing a good job. I also asked about the poor OFSTED report my CAFCASS office had got.
OK so I got no response to the how do you know your doing a good job, but having been through the legal system it basically works like this ... there are enough different agents are work here that if anything goes wrong each can blame the other.
CAFCASS can basically say it was the courts fault or the parents fault for things going astray, there role is to recommend but it's for the court to actually make the decisitions.
The Court can basically say it's not our fault it was either CAFCASS not giving enough guidance or it's the fault of the parents, and their legal council not doing their job correctly.
Basically everyone can blame everyone else for the children loosing out because of poor decisions. And hell everyone keeps there job and goes home with a days pay.
It's my view CAFCASS is a failing organisation without the resources to do it's job properly, hence anyone who works for that organisation will quickly either say "stuff this I can't do my job properly I'm letting these kids and their parents down" and they go, and you left with the "hey it's just a job I don't really care, so long as at the end of the day I protect my own arse and get paid."
I saw it happen with my case ... CAFCASS goes "hell we've got more important cases we're out of here, let the court decide", the court goes, hey wait we need guidance because we really don't know what we're doing here. CAFCASS goes, oh well if you really insist, here is some rubbish report we did without any resources it maybe right maybe wrong ... but your kids arn't in serious danage so we're basically going through the motions and produce any old shit in the hope that the court and parents or anyone else can sort it out.
As to my response to asking about the poor ofstead report, the guy I had said basically "hey there was a time when farthers felt they were being descriminated against because all the officers were female, but we've hired some male officers now so that's OK.
If you look into CAFCASS and what their being asked to do by the govenment and the higher management it's basically "get through more cases faster."
VENT OVER!