Jim Heppelmann, chief executive officer of Boston-based digital transformation firm PTC, admits he can get a little bored if things start to feel routine — and he says that’s a good thing.    “I’m open to changes, very much so,” he says in this episode of PNC C-Speak. “It’s a good set of skills, I think, for a CEO to be able to imagine things working differently and be impatient enough to go after them on a regular basis.”    Listen as Heppelmann shares his career journey with PNC C-Speak co-hosts Jon Bernstein, regional president of PNC, and Carolyn Jones, market president and publisher of the Boston Business Journal. In the episode, Heppelmann touches on key tenets of industrial innovation, what startups can teach big companies and how he focuses his teams in challenging situations. Powered by PNC Bank.   Subscribe to C-Speak so you never miss an episode. Listen on iTunes, Spotify and Stitcher.   Download a transcript of the podcast.