Miller makes no sense, MIA should keep developing Rio & Cole. They should also take a chance with there draft pick and bring in an athletic 6'11+ dude, rather here or international.
MIA doesn't need a traditional PG. They got Lebron, they need spot up shooting out of that other guard spot. Last thing you need is an Andre Miller (or similar type guard) taking the ball out of Lebron & Wade's hands.
I thought at the beginning of the season that the Heat needed a PG, but with the way Cole and Chalmers produced I don't think that's a priority anymore. The main thing they need out of their PG's is to be able to hit open 3's and defend and both of them are capable.
They do need to make sure they have 3pt shooters. If you notice Lebron is most successful when he's surrounded by 3pt shooters. When the Cavs made it to the finals the role players were on fire with the 3. Same with this last series. So Ray Allen would be the best option. Terry would be good too if they can't get Allen.
The next thing they need is a shot blocking presence. I don't know if Bosh can play as well as he did as a shot blocker. Dude played above and beyond what i thought he was capable of. Camby could come off the bench even. They just need him to rebound and block shots or at least change shots. Oh and make lay-ups.