Good Thinking by Congressional Republicans?

Govexec reports on the resignation of a Treasury tax expert, who apparently struggled with the job of writing regs to implement Trump's tax cut law.

But some parts of the law as drafted “were not well thought out,” Trier, a Treasury veteran from the 1980s and later a New York lawyer who consulted to congressional committees, was quoted as saying. Trier revealed that people looking at pieces of the new law sometimes asked him whether lawmakers could have reasonably meant to write it the way they did. “We’re going to have trouble with about half the legislation if we apply that standard,” he said, according to the Journal. 

Implementing a big bill is always difficult, but it sounds as if the GOP gave the bureaucrats a more difficult job than usual, a job likely to be complicated if Congress can't agree on passing a technical corrections bill to fix some of the problems. 

I wonder whether Treasury will be able to live with the 2 for 1 regulation mandate of the administration when implementing this?