The new CBA stops teams over the lux tax from having as much room as as other teams. It's going to be much harder for those teams to sign guys because the teams under the lux tax can offer like double of what teams like Miami can.
Plus, with Miami it wasn't those veterans on minimum contracts that won them the title, it was those veterans on solid deals that did. Something Brooklyn won't be able to do. Mike Miller at 6M, Udonis Haslem at 4.1M, Joel Anthony at 3.8M, Shane Battier at 3.1M, etc.