Shawn Layden may not be at Sony anymore, but the former PlayStation boss has a lot of thoughts about the company, its games, and the industry as a whole. Specifically, he’d love to see a return to the PS1- and PS2-era of games, and he has a (somewhat vague) plan to achieve it. In a July 23 interview with Eurogamer, Layden spoke at length about how unsustainable the current model of game development is. He discussed the untenable ballooning budgets…