Which atlantic records producer sent detroit residents - wilson pickett and aretha franklin to fame studios in northwest alabama in late 1966 and 1967, respectively, once atlantic were no longer allowed to record at stax in memphis, tennessee?

The right answer is Jerry Wexler (1917-2008).

Explanation: Just to elaborate a little on the answer, it can be added that this famous music producer and reporter coined the term "rhythm and blues." He joined Atlantic Records in 1953, and he was instrumental in the popularization of black music. In the 1960s he worked with Wilson Pickett and Aretha Franklin, who recorded with Southern bands in studios such as FAME.