With the foregone conclusion that the vote will be along party lines and thus not near the two-thirds needed for conviction I certainly don't see a need for Trump to keep a team of lawyers on hand. I imagine this is all about Trump telling the lawyers to scram and the media trying to make something out of it.
It doesn't need an entity to "make something out of it". It's ALREADY something.
Your whole team quits, including your lead, for an impeachment trial? That's as historic as getting impeached twice was,
regardless what comes to pass at the trial itself. Moreover it also, just by itself, indicates far more about the merits of the impeachment than does a partisan result in the trial, since attorneys are bound not by political strongarming, but by legal ethics and court sanctions. This is the stuff of future history books.