As Philippe Vergne heads out the door, art critic Christopher Knight wonders if there’s some way to DNA-test curators to see if they can make the leap to becoming museum directors – a very different role. “Like his MOCA predecessors Jeremy Strick (1999-2009) and Jeffrey Deitch (2010-2013), Vergne was unable to make the transition from curator to director. That means MOCA, a major art museum of international significance, has been without an effective director going on 20 years — half its lifetime. That desperately needs to change — and fast.”