Further to the Food Delivery Wars post from last week, Quartz is reporting based on Second Measure data that DoorDash is the #1 US delivery company. Notice that Square’s Caviar has been relegated to the “Other” category and Uber Eats hasn’t grown market share in over a year. Might this turn up the heat in the Grubhub kitchens and force a DoorDash acquisition by either Grubhub or Uber?