I think you'd have most of the same problems as far as there being only one ball. CP3 is a PG, but he pounds the ball as much as LeBron/Wade ever have. (probably more honestly)
He'd get Bosh more alley oop looks and other easy dunks, but Wade or LeBron would still struggle off the ball.
Overall I think Wade is a better player than CP3 and in the end a better fit to play with LeBron. He's just had two awful games versus the C's.
I disagree with your assessments. The lack of chemistry among the current three, and need for a point guard, is too obvious.
Why would chemsitry with CP3 be any better? He pounds the ball just as much as Wade/Lebron/Bosh.
Also while the Heat are very weak at PG, does being very weak at SG help much either? They don't need CP3, they just need a PG to defend and hit 3s. Right now they have a guy who can shoot but that's it.
They have LeBron, they don't need a PG to create offense.
This is where I disagree. LeBron is a crappy poing guard. He might have good assist numbers but a good point guard knows how to get everyone involved in the offense. LeBron is the ultimate shoot first point guard. How many teams have won with shoot first PGs?
Edit: Everyone that plays with guys like Rondo, DWill, Nash, CP3 know to be ready because if they get in good positions, their PG will find them. Guys playing with LeBron know one thing, stay out of the paint and out of his way.
Edit #2: How many times did you see Rondo recognize good matchups with Pierce on shorter players last night? You would have thought it was Miami's game plan to put Eddie House on Pierce. In actuality, Rondo just recognized it the 4 times it happened and made it his priority to get Pierce the ball for wasy buckets.
I think you are way off base that LeBron is a crappy point guard. He creates high quality looks at a rate as good as almost any PG in the league. He looks to score first, but there is nothing wrong with that. He's the best player in the league and should be using more possessions than PG like Rondo.
There is more than one way to play PG, or run an offense.
That style of offense is way easier to guard than one where the PG is looking to get all 4 players involved. On the Celtics, you dont know where it is going to come from. Is rondo going to get it to Ray off of screens, is he going to find Pierce in the high post, is he going to play the P&R game with KG or BBD, Is he going to push the tempo and get Shaq some early post ups?
So many dimensions to defend because Rondo can spread the ball around evenly, and initiate a ball movement based offense.
LeBron is amazing at getting into the paint and scoring or kicking out. He has the drive and kick game and sometimes the P&R game. That's it. That is all it was in Cleveland and it resulted in stagnant offense in crunch time that led to losses. It also resulted in Mike Brown getting fired. We all thought he was the idiot behind that terrible offense. Looks like it was LeBron.
LeBron is not a crappy point guard if he is literally the only option to score on his team. Well he has help now. Bosh in the post, and DWade on the wings. Expecting those guys to just stand on the perimeter and wait for LeBron to kick it out to them is wasting their talents. A good point guard would realize who he needs engaged in the game in order to win. LeBron thus far has only looked to engage himself against tough teams.