Complicated question to answer.
A few yes answers to start. We are having 1's versus 1's during scrimmage. Jessie and Barrett do face each other.
But, a few caveats.
You have to consider how few times during a game we actually line up in a base 3-4, the majority of the time it's in our nickel. I mentioned that because if we are playing a 3-4 over Jessie ends up playing the 3 technique at times. You can look at game film and see times where we won't have both A gaps covered on the line of scrimmage.
When it's the responsibility for our nose to handle the A gap, he's (JW) still not facing Barrett one on one per se.
It's an interesting battle when they do face each other. On one hand you've got a guy who is physically strong enough to be a force in the middle. But, he's going against a guy who understands the technique of offensive line blocking.
Seriously, you put Jessie hitting the A gap and he's facing Barrett and Chance? I don't care how strong you are, you're playing against what very well could be the best center/guard duo in the nation.
Synopsis? We are more than OK when it comes to our NT position. When it comes to the center position I'm cautiously optimistic. I do believe we'll have some growing pains here with the position switch. But, we're fortunate to have someone like Barrett having that burden.