It's impressive to see how well the Celts have played without Robert Williams, using a 36 year old Al Horford and Luke Kornet to hold down the center position. Kornet has the fourth best BPM on the team, the best DBPM and WS/48... pretty great production from a 9th man who's getting paid the vet's minimum on the team with the best record in the league.
The 73 win '16 Warriors used Andrew Bogut at about 21 mpg-- so even though he usually started, he was essentially a 6th man, with Festus Ezeli backing him up at about 17 mpg.
The 72 win Bulls started Luc Longley, and backed him up with journeyman Bill Wennington.
The blueprint has always been there for teams without dominant centers to win, even before the three point era, which has made them less relevant than ever. If I'm a GM in this era, my #1 priority is getting super versatile forwards/big wings who score and defend, and shooters. The Pelicans just took over the #1 spot in the West, and some of their most productive line ups have 6'8" Larry Nance Jr at center, who makes an extremely reasonable salary of $9.6 mil this year.