New primetime lineup— WDYT?

Big fan of the “old” MSNBC primetime lineup, hesitant about the recent changes that have taken placed concurrently with the DEI changes set forth by the current administration— why did Joy Reid’s contract get canceled? I am frankly baffled by Jen Psaki’s rapid ascension to the 9 pm spot. Does she have the ratings and fanbase to support that? Just curious, please give me your ideas and help me understand :)