Groupon employees might want to look for the quality of coffee at their workplace to improve in the near future. This afternoon, Groupon announced that Howard Schultz, the CEO of Starbucks, has joined its board of directors. Groupon got an unspecified amount of money from a VC firm, too. Let's cover the funding news first, since there's not much to say. Groupon only explained in a statement, "Maveron LLC, a venture capital firm co-founded by Mr. Schultz, has invested in the company."