Tesla (NasdaqGS:TSLA) is entering a key year as several senior leaders, including the heads of AI infrastructure and North American sales, have resigned. The company has reported its first annual revenue decline and consecutive drops in vehicle deliveries in the US and China. Tesla has lost its top EV seller position in Europe and China as competitors expand offerings and brands. The company is winding down production of some legacy models while prioritizing its Optimus humanoid robot and…