Ludwig will be a better fit for Utah's Oline. He fits Whitts philosophy.
The concern is that it might take a few games to gel. This is of course what BYU fans should see as their advantage. However one disadvantage for BYU is that Ludwig as the OC doesn't give BYU any tape to go on. He might just be able to throw some wrinkles that BYU won't expect because he is new. (Yeah he was there 10+ years go but that isn't a factor really.) So being new is an advantage and disadvantage both I guess.
But overall I think it will be good. And I'm not too concerned. I think finally Whitt has someone that will work for more than one or two years like all the previous.