Now that Arne Duncan has been picked, ed reform crusaders tell me it was "inevitable" and even "brilliant" in retrospect, because Duncan has solid reform credentials while also having managed to retain good relations with the unions. But which way will Obama really go on ed policy if the top man seems able to straddle both worlds? The new fretting is over who will be Duncan's deputy secretary - a Jon Schnur (the uber-reformer who founded New Leaders for New Schools), or a Linda-Darling Hammond? Or will Arne somehow split the baby and confound the search for clarity by naming two equal deputies? And thus force ed reform angst all the way down to the critical Deputy Assistant Secretary for Blackboard and Chalk post?