The overall method is very similar to what I use - at its core, it is simply a combination of an Eisenhower matrix and the Ivy Lee method.
The only thing that I must add is explicitly listing 'strategic reserve' time as an 'important' task - otherwise "triaging" can have you focusing solely on short-term priorities (e.g. "emergencies") and never giving you the space and time to consider the larger picture.
The only thing that I must add is explicitly listing 'strategic reserve' time as an 'important' task - otherwise "triaging" can have you focusing solely on short-term priorities (e.g. "emergencies") and never giving you the space and time to consider the larger picture.