Here's an interesting tool for exploring NBA Salaries. It paints a really clear picture on who the winners and losers are as far as salaries go. It also shows which teams have potential and which have already hit a plateau.
https://public.tableau.com/profile/sraanalytics#!/vizhome/NBASalaries_3/Dashboard1
A few of the interesting take aways
*The Miami Heat basically have their core set for the next 3 years and this year should be their ceiling as far as potential
*The Warriors have almost half their salary tied up in Steph Curry for the next 4 years.He's a bargain now but will become an anchor later if he can't stay healthy.
*The Sixers, Lakers, and Bulls both have enormous salary space, though the free agent market is a little dry the next few years.