To be honest, there's no one from the Miami Heat that can slow down Nikola Jokic. He needs to be contained, at least, always with the help defense.
Jokic is consistent in his numbers since Game 1 and even with the Nuggets' Game 2 loss, he was still unstoppable at that game, whoever was assigned to put some defense on him. Aside from that, that switch you are referring to will always be bound to happen and Adebayo can't just focus on Jokic most of the time. That will make him exhausted as he's also providing good numbers in offense. It's hard to defend Jokic in a post-up.
Might be the only way for Miami Heat to have an edge against the Denver Nuggets is, if Jokic won't get support much from his teammates.
The question is, will that really happen for the Nuggets?
That's another thing for the Heat's defense as aside from Jokic, everyone else inside the floor is capable of producing good numbers
even they'll manage to defend or slow Jokic a little, Murray and the gang can cover.
Though if Miami will play the same way, they did last game 2, where they manage to have good shooting percentages, that's the only thing that
I know to even these series.
Everyone needs to bring decent numbers from both defense and offense to try winning game 4.