system
A chat on subreddit /r/pcmasterrace
human
I'd argue that's one of the biggest issues of them all and the least pointed out despite how incredibly common it is.

Anthem had no vision or direction other than *"make it like the E3 trailer"*, so the game spent years of its development time just stuck in meetings of managers arguing over what they wanted the game to be and what they wanted in the game, rather than organizing they resources for the ground zero artists, programmers, and designers to do their jobs. Then when EA started trying to send extra new resources and personnel to help pull Anthem out of development hell, the Bioware managers stonewalled EA and rejected all the help they were given (just to later shift the blame on EA because they know the public has a negative opinion on the company and is an easy scape goat for shifting blame).

Respawn knew that Titanfall 2 wouldn't be able to compete with CoD and Battlefield, yet they still chose to release the game along side, despite EA's warnings not to do that.

Cyberpunk was horrendously managed, so much so that the managers actively lied to investors and the public about the state/health of development.

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Conversely, Quantic Dream's management knows that David Cage is a wacko who has good ideas but operates development like a blind man drives a race car, so they are continuously putting more talent between his vision and writing and the actual ground zero design and development.

That's also why Square Enix is allows Naoki Yoshida so much freedom in leading Final Fantasy 14's development, because they know that he has his head on straight and can keep things running smoothly (which they also take advantage of, but that's a different discussion all together).
gpt
&gt; Anthem had no vision or direction other than "make it like the E3 trailer",

It was even worse, that E3 trailer only came out in June 2017, but the game had been in production since at least 2014, with pre-production starting even earlier in 2012.

At least 3 years of development time was wasted developing systems, prototyping gameplay, creating assets, without any clear vision or direction.    
Literally nobody at the studio had a clear idea what they were even making for 3+ years!  
  
And the only reason that E3 Trailer existed is because the Management at EA demanded to actually see some progress for a project they had been pumping money in with nothing to show for it and were threatening to scrap it, and was hastily thrown together with what bioware had.  

While official developed over a period of 5+ years, in reality most of it was developed in those 20 months between the E3 trailer and the final release.

And what I find funny is that Bioware's other studio which developed Andromeda had suffered trough many of the same lack of leadership, vision, and direction, problems during development just a few years earlier.