NEW YORK — The Giants’ offense is about to undergo a metamorphosis. New head coach Brian Daboll will tab former Kansas City Chiefs quarterbacks coach and passing game coordinator Mike Kafka as his offensive coordinator, according to multiple reports. NFL Network’s Mike Garafolo and Ian Rapoport reported that the deal isn’t done but is expected it to be completed soon. Kafka, who has been a member of Andy Reid’s staff in Kansas City since 2017, came into the NFL as a fourth-rounder out of Northwestern, joining Reid’s Eagles in 2010 to back up Michael Vick and Kevin Kolb. Despite only appearing …