They could create a new flag for Abandoned Early Access games. If an Early Access game hasn't been updated in a long time, that could trigger an automatic email to the publisher saying "Hey your game hasn't been updated in a long time and could be changed from Early Access to Abandoned Early Access. Consider updating the game or store page to keep Early Access status. If you would like to switch to Abandoned Early Access, you can ignore this message and it will automatically update in two weeks or you can manually change the status on your game's Steam page." Wouldn't really need more employees to handle this unless the current employees are all too busy to implement something like it.