The Ravens actually call running plays just for him.
And, I don't believe for a second that you can teach a QB who is a natural instinctive runner (with super ability) who has run his entire high school and college careers to NOT run. They are wired that way.
I said the same thing about Watson, got all the same kinds of responses, and of course he's been hurt a lot. And of course he still runs, and of course it's his running plays that are his highlight reel. Because if you take away his running/scrambling he is still a pretty decent pocket passer but not the Watson that can take over games. Same as Cam Newton. Same as RGIII. Same as Michael Vick.