What are the key factors for leaders to focus on. How can you differentiate thes

What are the key factors for leaders to focus on. How can you differentiate these factors for upper, middle, and lower management leaders?

The minimum word count for an initial posting is 200 words with support (library database {preferred} or internet is fine)or the text book (Tidd, J. & Bessant, J. (2020) Managing innovation: Integrating technological, market and
organizational change (7th edition).
please paraphrase and use 2023 sources if possible