Why note do the simple thing and vote him out in the vote they'd just had? Not very bright these Tories. So they find a way to get another vote! All very nice but little to suggest he would've lost that either so really no point. Any plan they had would have to have some strategy of winning the vote itself and you mentioned none. Remember you're saying this was a week ago, before the Pincher scandal was even known about.
The 1922 Committee membership election is next week, you moron. Had it come to a vote after the membership and rules had been changed, the ranks of the 148 (41 per cent) that voted no confidence would obviously have swelled. As it is a confidence vote is not needed as there will now be a leadership election.