I am waiting for Mike's check in too.
The big difference on the line is where you need your backside protection. And interestingly enough we did have Elmer at right guard, and Stanley at right tackle. Not to say one or more may not move left for right handed Golson. But Harry moves guys around.
Receivers I am sure it makes a difference for because of roll outs, throwing across the body, etc. So with running do you run right to set the ball on the right hash, so you can roll left, and take advantage of your quarterback in the air? Because we saw more improvement in running right this year. This could have more to do with personnel, but still, that is another item off the left handed quarterback check-list.
The big difference I can see in recruits and Harry's coaching is speed. These guys are bigger than ever and they move faster than ever. That bodes well for a mobile quarterback, whether you are talking Golson or Zaire, doesn't it?