There's a TED talk of the director of Finding Nemo Andrew Stanton talking about storytelling and how audiences like to be given the pieces and not necessarily the finished answer. So in his example, he called it the rule of 2 + 2. Give the audience 2 and 2 -- they'll figure out that it equals four and be happy they figured it out.
This film puts that to the test. All the pieces are there but it takes till the midway point until they start fitting together. This makes for an uneven first half until you figure out what's going on. Then it picks up but doesn't stop being choppy and jarring at times.
It's the writing that carries this film even to its detriment. If you're fine watching a bunch of people talking, then it's great, but the writing never gets a chance to breathe with moments where you can think about what's happening.
Ten stars because I was super impressed with how the story was told and would love for this structure to get used more beyond just a business drama like this. I probably will have to rewatch this a time or two more to catch everything.
The filmmaking backing up all of that writing is simple, but nothing special -- it all comes down to this film being a screenwriter showing out.