Scott Myers, the head of Snap's AR glasses subsidiary Specs, leaves after six years; sources say Myers left after a "blow-up" with Evan Spiegel over strategy (Alex Heath/Sources)

Alex Heath / Sources:
Scott Myers, the head of Snap's AR glasses subsidiary Specs, leaves after six years; sources say Myers left after a “blow-up” with Evan Spiegel over strategy  —  My chat with CEO Dylan Field ahead of today's earnings call.  Also: Snap loses its head of Specs right before the big launch …