I was gonna say Both?. But, I still keep thinking of the Nets being in New Jersey.
But yeah, in the 50s/60s, it was different. In baseball, several managers were considered "company men" (Pirates' Danny Murtaugh, Cards' Red Schoendienst in particular) who spent nearly all their playing/managing/GMing careers with one club. (well Schoendienst spent a couple end of playing career season with other teams, but still). Coincidentally they and another similar manager Walt Alston of the Dodgers ended their careers during the last season before free agency (though Murtaugh died so he had a good excuse)
Interestingly, the Reds dynasty back then got demolished because they simply refused to deal with free agents. (3 of their big 4 would leave, leaving only Bench) and the Yankees took as their opportunity to pick up the last needed pieces for returning to the promised land.
Personally free agency is to me needed to give players maneuverability (no telling how many players in sports got stuck in bad situations, bad teams, bad locker room environment, prick owners, stuck behind the local "god" on the depth chart) with no way out. But, I do think there is some limit to the amount of greed the fans can deal with (without going into how much owners are making. Hard to justify to them, going on strike if LeBron is raking in 30M (even scrubs in sports, at least baseball and probably basketball make several hundred thousand, which the average fan probably spends half their lifetime making). I can see both sides is all.