We will know if he is right in about 2 years, but I do agree with him as a first take. IMO, Tyler Smith is 50% of this draft. If he works out as the Cowboys expect, then this draft improves tremendously. If he is a penalty machine like he was in college then he is a bust and so is this draft.
I am not sure why he thinks Sam Williams was a 3rd round pick? Most analyses I have seen of him is that he would have been a first if not for the off field issues he had a couple of years ago. And he was drafted late 2nd so the Cowboys were not that far off in their selection even by Kiper's standards.
Bit in the end, I would give Dallas a C for this draft too just based on the players they took. But as I have been saying, they kind of boxed themselves into their first pick when they did nothing in free agency to fix the LG spot.