I think Kemi (and maybe Starmer?) is safe until May because everyone assumes the May elections will be so horrible, she might as well get to take ownership before a new leader comes in.
Of course there might not be much of a party left after May.
I'm more bearish on Jenrick for a couple of reasons. One is that he does really badly in focus groups. Another is that he's trying to appeal to the right after spending most of his career as a wet, but that just means nobody really trusts him, and people who might support him keep defecting to Reform.
I've heard from reliable sources in Reform that they've turned down 18 MPs who wanted to defect, and it wouldn't surprise me if Jenrick has been blacklisted. The secret Afghan resettlement scheme, which he was up to his neck in as immigration minister, would be reason enough to keep him out.
David Starkey likes Jenrick, I'll give him that, but I'm not sure appealing to David Starkey is the road to electoral success.
I still think Cleverly is the man to beat.