As much as it's in our nature to forget the times when our legends didn't get the job done, those guys came up short sometimes as well. They didn't
always deliver at crunch time, they also had their share of failures. We just tend to remember the times when they did step up and carry their teams to victory.
I'm coming from the perspective of having watched Wall and the Wizards all season long. Time and time again he stepped up at crunch time and willed that team to victory. Sometimes he came up short, yeah. But he also made some incredible plays that just left you shaking your head - wow, how'd he do that - and I'm talking about at crunch time. He went on crazy runs to get his team back into games when none of his teammates was able to step up. He took the pressure shot quite often, and quite often he knocked it down even after having been cold the rest of the game. He made one play - I think it was against San Antonio - to send a game into overtime which was (considering the circumstances and what was needed) among the best I recall ever seeing. And that was the third score he'd made in something like the last 10 seconds to get his team to overtime after everyone in the building assumed the game was over.
Yes, he didn't finish the job this year and he didn't impose his will in their last playoff series. But having watched him over the entire season, I'll put the ball in his hands when it matters and take my chances. I think he's going to come through more often than not. Jordan didn't get it done in the playoffs on his first try either. Miller never did. And, at any rate, both of them as well as the others you mentioned failed when it mattered most - even in the playoffs - from time to time.