There’s obviously some internal strife at McLaren. RD is in favour of one driver, the entire board and investors another.
JB has had a good season in a lacklustre car and has demonstrated that he’s on top of his game. Pairing a rookie with Alonso next year is asking for trouble IMHO, given Alonso’s propensity for dummy-spitting there needs to be a stable element to the team.
On the other hand I wouldn’t be surprised if McLaren didn’t buy Bottas out of his Williams contract and swap him with Button…stranger things have happened and Ron Dennis has a weakness for Finnish drivers.