The postcolonial thinking of Edward Saïd refers explicitly to the work of Foucault. His writings could be a bridging element between the two poles of your question.
Said strategically borrowed many aspects from Foucault's work while simultaneously rejecting others. I think the following literature can help you understand more clearly where (e.g., Orientalism, Culture and Imperialism, etc.) and which Foucauldian methodology (e.g., 'archeology'?) can be found in Said:
-Edward Said and Michel Foucault: Affinities and Dissonances
Karlis Racevskis in African Literatures
-Notes on Edward Said's View of Michel Foucault
Rubén Chuaqui in Journal of Comparative Poetics
On a more critical epistemological note, I would recommend:
-Beyond Edward Said: An Outlook on Postcolonialism and Middle East Studies
In Edward W. Said’s Orientalism, he resists the notion of one human nature – as does Michel Foucault in his works. Said used a local history (of the East) to make a universal claim.
Foucault wrote genealogies of power in his analysis of institutions, but his cases were somewhat cherry-picked. Foucault believed he was seeing what others were not in his own positive unconscious. Foucault wrote a lot on ‘ruptures', as he was also interested in the idea of origins and turning points. In Beginnings: Intention and Method, Said elaborates on this issue, making a distinction between ‘origins' and ‘beginnings'.