What does Arrowhead actually do in their studios?

Now that we're learning that major updates since Omens of Tyranny were outsourced, warbonds, weapons, and armors -- some of which launched with the base game were outsourced, Enemy AI, SEAF AI, Illuminate, and Cyborg units -- also were outsourced. Heck, even this subreddit and the ambassadors program are also being run by entities hired by the studio, so yes, outsourced as well. The 'slim' version of the game? Also outsourced.

Other than the spaghetti code, running their social media accounts, developing the basic lore of the Helldivers universe, and managing the galactic war (which JOEL isn't really doing all that well, if I'm being honest) -- what exactly do the folks at Arrowhead actually do? Other than post apologies for botched releases, poor balancing (or outright lack thereof), and downplaying some of our complaints, what do the devs do at Arrowhead Studios other than overseeing the work that's being outsourced?