Florida might fall, but thinking they'd fall into the bottom 10 is not an "educated" prediction even if they lose Reinhart. It MIGHT happen, but that's not likely. This is setting yourself up for disappointment.
They might re-sign Reinhart too. They will sign other players; they'll have nearly 30M in cap space if they don't re-sign anyone. They still have a good core upfront with Barkov/Tkachuk/Verhaeghe - they're not gonna make "rebuild" moves.
Also: see what
@pth2 said regarding the best of the two. Obviously that'd remain a Top 10 pick.