Well, Mike Budenholzer had a 0.463 record his first year coaching and has a career 0.589 coaching record. (all records regular season)
Taylor Jenkins? 0.466 and 0.539 records.
Mike Malone? 0.341 and 0.564 records.
Just to name a couple of the well-established coaches currently available. Maybe DC should get a chance to get an offseason and training camp underneath him (like these others had before their worse initial coaching seasons)?
Mike Brown was at 0.419 this year before being let go. DC took over midseason with no training camp, one of the two top players shipped out with apparently bad (or at least not great) vibes in the locker room, he got several new starters/rotational players at the trade deadline, he lost several key players to injury, and he lost some coaching staff. The players apparently all want him back. I think, overall, he did OK. Not GREAT, but OK.
Again, I'm not saying he SHOULD be the coach. But everyone who is about to jump off a cliff if he's actually considered are going pretty overboard. Just chill. No decision has been made. You're acting like Chicken Little here.