He turned 30 last week (Pierce turned 30 as the 2007-08 title season kicked off)
He has played 28,838 mins through his age 29 year (Pierce played 24,400 or so through age 29)
He was not named to any All-NBA team this past season (Pierce was named to far fewer than Melo up to age 29 but was 3rd team at age 30 and 2nd team at age 31)
Paul George has appeared to pass Melo behind LeBron and Durant for best SF in the NBA. Pierce was a better passer and defender than Melo at all times in their careers.
So what should he be paid if not the max? He can be signed and traded for 4 years with 5% raises. Pierce made 68 million ages 30-33. I think Melo should take a paycut to around that amount.
That means clear 16 million for next season and pay him 16-16.75-17.5-18.25 over 4 years (68.5 million total)
That would also entice Rondo to sign a team friendly extension for slightly below Melo (since he is not as good a player), 5 years 80 million for Rondo. Then Love, the best player of the 3, will make 15.5 and 16.5 his two years here through 2016. when he signs an extension it should be at 15% raise's to the 16.5, so 5 years of contracts of like 18-19-20-21-22 or 5/100. Not the 30% max of what should be a 70+ million cap by summer of 2016.
if the 3 of them combine for 50-55 million salaries over the next four years it will give the team, in a league with a 65-75m cap and 75-85m lux tax threshold the ability to stay around 85-90m in salaries and not pay over 100 million (including taxes) which should be Wyc's ceiling for team salary commitments.