Let the Brexiteers in
Remain minded Tories should probably consider the same thing. As Theresa May's government lurches around trying to find a strategy, or a vision, or anything at all, it becomes increasingly apparent that there is no value to the Remainer wing in her continued leadership.
Mrs. May's poor negotiating situation can be put down to her need to have been more Brexit than the Brexiters initially, in order to convince that wing of the party that this quondam (admittedly lukewarm) Remainer really could be trusted. Alex Wickham notes this point in his assessment of the depressed state of Brexiteers.
However, Mrs. May's own lack of vision for Brexit means she is caught between the two wings of her party. For every Johnson, there's a Hammond etc. Given the lack of control they have over the process, the Brexiters - exemplified by the increasingly frustrated outbursts from the non-governmental Jacob Rees-Mogg - will keep complaining that the outcome we are heading for is nothing to do with them. Nick Cohen skewers their responsibility avoidance strategy perfectly in his article for the Observer.
So it may be that the allegedly plotting Brexiteers should be given their time in power. They wanted this thing, campaigned energetically for it, and should now be given the chance to deliver it. That way, they can hardy avoid responsibility for the result, good or bad. Remainers can thus make their case more forcefully, unafraid of the charge of de-stabilising the government or the fear of getting someone worse. In effect, they would become the coherent, opposition group that the Brexiters currently are. And be ready to step in should the Three Brexiteers swashbuckle their way to disaster.