I think most Brexiteers should take note of the advice in this article:
TCW’s Brexit Watch: Johnson can indeed rip up the Withdrawal Agreement
conservativewoman.co.uk
It certainly echoes my thinking - and those with direct experience of managing major negotiations will know that when the other party suggest that it might be a good idea to reduce tension by switching out the lead negotiators - that is a sure sign they are on that back foot and concerned about the effectiveness of your lead.
I have said for months that Johnson is the weak link and I just hope that he keeps out of direct involvement and just supports Frost and others - let's hope his vanity does not lead him to get involved with von der Leyden directly - like he did with Varadkar - that would not be good.
The UK has ended up in a place where the EU now have to recognise the size of the majority the government holds which means that they can be confident in bringing forward primary legislation - they will be dismayed after enjoying all those years of Remainer duplicity at Westminster.
Johnson just needs to hold his nerve and let professionals lead on this - and please FFS not get personally involved