Game Pass launched at $10/month in 2017. It now costs $30/month. And the new Xbox CEO just told employees the price is too high. The math behind how Microsoft tripled the price of its own subscription and then admitted it doesn't work is a product management case study. Game Pass subscriber growth had stalled around 33-34 million by mid-2024. Microsoft's solution: close the $69 billion Activision Blizzard deal, put Call of Duty inside Game Pass at launch, break through the ceiling. CoD…