In English, this is what I am looking for: Total number of tasks with any of these names (Manager, IC, Lead, Director, Grand Poobah) that have the checkbox checked
=COUNTIFS([Task Name]:[Task Name], "Manager", Done1:Done53, 1 (OR([Task Name]:[Task Name] = "IC", Done1:Done53, 1, [Task Name]:[Task Name] = "Lead", Done1:Done53, 1, [Task Name]:[Task Name] = "Director", Done1:Done53, 1 , [Task Name]:[Task Name] = "Grand Poobah ", Done1:Done53, 1)))