As usual with Sky, you can read this both ways:
Way 1: Leinders + Bertolucci are recruited because the team want to improve their results and now realizes doping (+ associated borderline practices, which we know very little about, but include healthy weight loss) is the only way to do it
Way 2: Brailsford leaves the screening of docs down to Peters. Peters, normally adept at seeing straight though people (cf books by Pendelton &Moore) gets fooled by Leinders, who is actually keen to get away from doping and into a clean setup (as may be riders like Rogers & Van der Velde etc).
In support of Way 2 is (a) that Peters was moved from cycling to Athletics a month or two back: I thought it strange at the time, considering how dependent Brailsford seemed on him, but now one read more into that move.
(b) Doctors, I have observed, treat other doctors different from the rest of the population: they are more likely to trust them.
(c) The Walsh-Brailsford interview a few weeks back: obviously he would have asked about Leinders: he didn't include the answer in the article he wrote but said something like "I was reassured about what I heard"
Sad thing is, whatever you believe, this leaves a question mark over Wiggins season in 12, and its hard to imagine how this now could go away.
Well done JimmyFingers for moving position in light of evidence: an example to us all, on either side of the debate