I'm of a different mind. Too many pundidiots try to read tea leaves based on who he's appointing. Are the a Pence person or a Breitbart person or whatever. None of this matters. Trump is going to do whatever pops into his head with little input from the people who he considers one step up from the waitstaff. He doesn't care what Paul Ryan, Mike Pence, his DOD pick, his Commerce pick, his Treasury pick, or anybody else thinks. Basically they're all just noisy furniture. Trump is enjoying the coverage of his cabinet choices far more than he'll enjoy or use any input he gets from them.
So, I see his administration playing out as such. 1) He'll keep his promise to expand and fence in the existing border wall, and claim somehow that Mexico is paying for it via taxes Mexican tourists pay when they visit the US or some other such nonsense. 2) He'll claim he's started deporting criminal illegals when in fact he'll just continue current policy. 3) He'll blow the deficit wide open with a big infrastructure program while passing across the board tax cuts because that's what Republicans do when they have a chance. 4) He'll screw Paul Ryan on Medicare privatization once someone (maybe Ivanka) whispers in his ear that its his core supporters who will be taking it in the shorts.
Trump is absolutely unencumbered by campaign promises. He'll just tell you he didn't say that even if you have a recording to the contrary and move on. He owes GOP leaders in Congress absolutely nothing, which is what they'll be getting any time their interests diverge from his. He'll just as soon make deals with Dems as Republicans as long as the end result gets him good press. Its going to be a wild and ultimately disappointing ride for all involved.