Even a few days ago you could see (and even just from body language) Charlie and Sophie looking at Lisa and David with the idea of forming something of a team effort to take out Freddy, Marcus, Possibly Bea and Siavash.

Now that Lisa is staying I think that Charlie is most definitely seeing the possibilities and might even be there already. Sophie is just standing there anyways.

One good thing about this (from our viewing pov) is that we always talk about how great it is to 'see the look on their face',
and,
if there is one thing BB fans LOVE is seeing a 'smug' HM walk out into surprising boos.
Well.. ..Freddy or Marcus both are absolutely great candidates if there ever was a pair.
Freddy in particular and this week in particular would be just stunned.
Marcus to a lesser degree. Normally he probably would expect boos and will surely give the two finger salute just to show off but this week he is so high on himself and his safety he can't stop being giddy.

But yeah.. Charlie ought to get over to Emperor Lisa and Darth Camp and bring Sophie with him and then proceed accordingly.