Ford’s gigantic bet on building a team to compete with Uber has leaders of Pittsburgh tech firms feeling validated — but also wondering if there will be enough talent to go around. “The competition for people doing this type of work is very fierce,” said Steve DiAntonio, president and CEO of Carnegie Robotics LLC, which spun out from Carnegie Mellon’s Robotics Institute in 2010. “Having now another well-financed organization that wants to hire 200 people by the end of the year — that is a bit of a threat, there’s no doubt about it,” he added. “There’s enough critical mass in this region where you are getting people to jump from one start-up to another.”