why take the lackey? why not just appoint bush?
His promotion of Bush people is yet more evidence that Ted Cruz represents fake opposition to the GOP establishment, although there really isn't a need for any more evidence of this after his behavior towards the end of the 2016 primaries.
Sometimes Ted's posturing and grandstanding in the Senate proves useful, even if his motives are dishonest. In this case, Ted isn't being useful even accidentally.