Oh, I see, Gibson Dunn is representing NWBO in two cases. That's not unusual. That is non-duplicative. They can get to know the company, its processes and personnel once, and how to locate everything they need... and then that creates more efficiency for other cases. You would not want a plethora of firms representing you.
Those are all some fairly expensive corporate firms though, representing all sides on the Yonemura case, other than Levi & Korsinsky, which I'm presuming is plaintiff's counsel.