Being in charge does not mean that Carson will be making the decision, that’s not how executives work.
Carson and a team are most probably vetting a large number of possible candidates, doing their due diligence, and will make a recommendation.
Then Trump will either agree or disagree.
.....”I don’t want Ben Carson for the vp, and I’m not so sure I want him selecting them either”......
Why would he use Carson when he has no political clout nor experience at such things??? Seems to me he’s just giving Ben something to do sufficient to be keeping his word he would have “a place” on his team.
I also understand Carson’s ‘not leading’ this just a member of the committee doing the search.