From what I have read Reince did a great job with turning out of the vote for Trump. In 2012 GOTV was a disaster, but in 2016 it was a huge success and Trump praised Reince a lot for it.
“out of” = out
Priebus also did a good job of keeping everything coming from the national party fair and above board during the primaries. He made sure then candidate Trump was given his chance despite heavy pressure from the party bigwigs. He definitely earned his spot in President Trump’s administration. On the other hand, if he’s not getting the job done now I’m sure Trump knows how to handle that problem.