Not really. Bron gets max (22), Bosh gets 15 mil and Wade gets 11-12 saves Miami 13 mil. Haslem saves Miami at 3/9, 2 mil. 15 mil saved. Out of the 70 mil they had with those four alone with Norris Cole and Napier.
That gives them 55 mil in those contracts. They could resign their own FA's. Miami would prefer to go over the salary cap as they would get to keep their MLE instead of under the cap to sign their own FA's. So Birdman for 1.5 mil. Lewis for 1.5. Oden min. Beasley 1 mil. Use the MLE to sign Okafor.
The problem before they opted out was they would get a tax payers MLE which is weak as shyt and if they went too far over the tax, they wouldn't get anything at all. So it helps they opted out. Made it possible for them to get a MLE which is 5 mil.