I've amended some details as this is quite outing so sorry if it doesn't flow.
Where I work is a newish site for a well established company. The original launch team have all left bar a handful who are absolutely fixated on the 'dream team' aka the original team. Anyone who comes in after is sort of swept under the carpet and they just assume they won't last. Quite a lot of the original team have reapplied for positions and come back in different roles. This has happened on my team. So our newest member (NW) has only been on my team for 2 months but she was an original who has come back (she did a different role previously so has had no experience doing our role).
Every single day she is late by between 10 mins and 45 yet she always leaves on time. manager doesn't see this as she starts after we do. NW always claims there was traffic or road works. She drives in and parks in the clients car park because that's where she used to park (it's free but we all have to pay to park near by). Most days she just says that she can't be bothered, plays on her phone, makes personal phonecalls or eats. I am not even exaggerating when I say that she has breakfast, a morning snack, lunch and then grazes all afternoon at her desk (which I share with her). Her meals/snacks usually require 2 hands so she can't actually use our software while doing it, nor can she answer the phone. She also just will not answer the phone and leaves it to ring out. We are expected to answer it within 2 rings.
She is just lazy!! And I have to pick up the slack. I'm having to take her calls instead of mine, do the work she isn't doing on the software (we are judged on overall outcome rather than individually). Manager thinks she is amazing and spends her contact time with us reminiscing about the old team and having 'bantz' with NW. Since I have started alone we have by far surpassed targets in terms of productivity, results, feedback and financially so it's not like we're just shit.
Can't bring this up with NW because she is 'in' with the manager and so I obvs can't bring it up with manager for the same reason.
What should I do? Anything? Nothing?