Second update, Thursday: It's official.
Update: The New York Times's Randy Kennedy and Patricia Cohen have also confirmed that Deitch has told the trustees that he plans on leaving. According to an anonymous trustee, the museum's board has a meeting on Wednesday and will likely form a search committee. Deitch, according to Kennedy and Cohen, "did not return phone messages left over the last two days."
Original post: In what could be a big shakeup for the art world, LA Weekly's Dennis Romero reported late last night that gallerist-turned-Museum of Contemporary Art director Jeffrey Deitch is leaving the museum, according to a "source."
Romero reports that, according to "insiders," the downtown Los Angeles-based museum is going to make an announcement tomorrow, and that Deitch will leave by the end of the month. Tom Christie, at the Tumblr B.L.A.T.C., adds that Deitch "has reportedly been on a search himself in recent weeks – for both an apartment and a gallery space on New York’s Upper East Side." That pretty clearly implies he is likely to return to New York, where he was a star in the gallery world. (Update: Christie noted in an email to the Wire that B.L.A.T.C.'s post actually broke the news before Romero's.)