Kellen Moore most likely to be Saints coach; Saints meeting with Moore again after the SB, Kellen Moore has begun working on assembling coaching staff

Yep, that's a QB running the ball. Enough of those over a season will get you to 300 yards. Dak's look the same. Not sure what you are getting at.
My point is that neither Herbert, Dak or Carr are the mobile QB types that seem to be the QB everyone wants these days. But with the right team around them they can be successful. In fact I thing the term "Mobile" is outdated. I think what coaches are looking for is " Escapabilty" so they can maximize every play.