First of all, I think it is unfair to call any player (especially a PG or C) a bust or a success before year 3. So often player show lots of promise that never materializes or struggle initially and then learn the league, that year 1 and year 3 are complete reversals.
But I'm curious who "around these parts" wanted to package the #5 and #10 for Ball. My read was that most posters here seemed delighted that he would go to the Lakers and couldn't wait to proclaim him a bust.
What is fair and unfair about projecting how good or not good you think a player can be based on early returns? Why is that unfair? It's just an inexact science that may prove to be prescient or not. Nothing is 100% certainty but probabilities lean disproportionately when you look for obvious and not-obvious cues.
Rookies tend to establish floors and ceilings sooner than later and provide fairly accurate glimpse of what they can be. All you have to do is look at most players stats year to year and see fairly linear growth relative to efficiency and production. There has to be a baseline efficiency for starters to justify future playing time then you go from there.
Dramatic jumps, say 4 PPG to 15 PPG are possible but more exception than the rule. What can be misleading is players who are given a lot of playing time because of circumstances and produce on bad teams. This doesn't last indefinitely. Raw production can conceal mediocre efficiency that eventually changes their role and perceived value.
This was the case with Tyreke and Michael Carter Williams to a degree two former ROYs. When Tyreke posted 20/5/5 it was with help of high usage and teammates who stood and watched him go 1-2 and 1-3 to mixed results. The questions about true position and ability to get around picks and defend and make teammates better were there from rookie season and persisted most of his career.
I didn't need a sophomore season from Jahlil Okafor to conclude the guy was an apathetic personality and defensive slug and one dimensional scorer and blunder by Mr . Trust the Process when Porzingis was there for the taking.
The Nuggets had high hopes for Emmanuel Mudiay. He was going to be their "franchise point guard". And he struggled terribly as a rookie. There were red flags all over his rookie season . He could not turn the corner on his man. He had impressive size but he lacked the juke moves to create separation and the outside shot to set up the drive to the rim.
You could take the perspective to wait until next year (third years) before considering a success or failure if you want to be ultra-conservative. But I don't need to wait to project what is most likely to be. Okafor and Mudiay may become serviceable back-ups but is either going to transform into a perennial All-Star as originally forecast in best case scenario? Highly unlikely and this was forecastable based on their respective rookie year.
You can always point to exceptions of under the radar players who emerged. But even a guy like Giannis who put up modest numbers as a rookie was envisioned as a future terror based on glimpses he provided as a rookie. I could go on an on. We knew Isaiah could play from Day One. I said 2 weeks into him taking over as starter that Isaiah was a player with no weakness. I said early on the ONLY thing keeping Boogie from perennial all-star status was physical conditioning.
By contrast where were the glimpses from guys like Ben, Stauskas and Jimmer? When you have to squint hard to see competency thats not's not a good sign. You have to squint hard to see Malachi carving out a niche. The glimpses have been too few and too far between. Their careers played out accordingly. Again, I am just telling you the cues are there. To say you cannot formulate a reasonable opinion through half of one year is unfounded.
Dennis Smith Jr is a guy NOT having a good rookie season . I am not going to get into the details why but I will tell you the Mavericks are likely disappointed with him internally. They were comparing him to the Allen Iverson or Steve Francis. No chance. He's not the creative scorer or relentless competitor.
By contrast the Kings front office has to be thrilled with development of De'Aaron. And if the Lakers could go back into a time machine and do the draft again they would take Fox or Donovan over Bust in a heartbeat. They'd be closer to .500 team with Fox. They'd take Fox or Donovan and be thankful to never bear witness to Lonzo Bust's hideous jumper again.
Similarly if Vlade had to do it again, he would take Kouzma over Justin Jackson in a heartbeat too. He doesn't need three years to know now what is obvious as the nose on his face. Kouzma is better today and will be better three years from today. His mentality as an alpha dog and ability as versatile face-up scorer is not going to go away. Whereas the role playing spot shooting mindset and skillset of Justin Jackson is not going suddenly transform over one summer.
I will concede anything is possible. But incremental progress from Day One is the normal occurrence not radical transformation from bottom feeder to superstar.