There was a point where WotC was good for a Christmas Purge like clockwork. That kinda stopped / slowed down as D&D Next / 5e was getting it's polish.
Now that 5e is pretty much all outsourced for it's adventures and just about everything else, should it simply be called D&D OS (for "outsource" of course ;)
Anyway, it looks like art director Mark Painter is one of the victims of the latest round of WotC layoffs.
Read the thread over at ENWorld. It actually has a good list of what WotC is outsourcing these days in the comments section.