The year Robinson had a competent point guard and PF on his team, when Robinson was a rookie, the team went 7 games with the eventual finalist TrailBlazers.
Was it Robinon's fault that he had Avery Johnson as his starting point guard, and Vinny Del Negro as his starting SG for most of his prime? Outside of Sean Elliott and Robinson, no-one on the Spurs could create a shot, and Elliott wasn't that great at creating his own shot.
I mean, just look at the roster! Antoine Carr? Lloyd Daniels? JR Reid? A 75 year old Dale Ellis and a 67 year old Rifleman? I love those guys, but come on, you can't even put a prime Chamberlain, Kareem, or Russell on that team to make it win. You just can't.
And the coaches! Man! After Larry Brown left, Jerry Tarkanian? Bob Hill? John Lucas? Is it a coincidence that 2 of the other 3 never ever got another head coaching gig, and Lucas never even had another 30-win season after the Spurs? And when Brown was here, the Spurs actually did pretty decently in the playoffs (well, other than 91).
Not saying Robinson > Duncan, but Robinson never was given the credit he was due as a basketball player. He was underrated because of one single series, when the opposite team was triple teaming him throughout, and his PF was jacking up three pointers just for fun in an important playoff series. He was one of the greatest defensive player of all time, he can score any where within 18 feet of the basket, he was quicker than most SF, he was a monster on the court.