SUNNYVALE, Calif.--(BUSINESS WIRE)--As president and chief operating officer of M&R Distribution Services, a small, minority-owned firm based in the Midwest, Quentin McCorvey, Sr. used to find it hard to get a foot in the door with major companies. Then he signed on to the Ariba Network. Now, he’s not only cracking doors open, he’s kicking them down. Using Ariba® Discovery™, the premier service for matching business buyers and sellers offered by Ariba, an SAP Company, McCorvey has been able