Ruegger, along with most of Hanna-Barbera's production staff, departed from the studio after the first season.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: Ruegger, along with most of Hanna-Barbera's production staff, departed from the studio after the first season. ### Response: .