Since 78-79, Jordan, Bird, Magic, Duncan, Hakeem, Shaq, Kobe, or Moses have been on the championship squad all but four 4 times. These are top 12-16 guys all time.
1988-1989 Pistons
1989-1990 Pistons
2003-2004 Pistons (only real anomaly)
2007-2008 Celtics
All four of these squads played other worldly defense, plus 3 had multiple hall-of-famers. So unless we start allowing 90.0 ppg on 42% shooting ('08 Celtics) this team is not going to win a championship.
In my opinion, we have to luck out into a superstar and our 4 and 5 are too small to be legit contenders. Eventually, one is going too have to go, our become an uber 6th man.