I don't blame McD that much for the Len pick, a lot of GM's made bad picks that year. You can't grade a GM on picks made other than their own and of the players available with the information at the time, Len was a smart pick at the time. He's finally showing flashes of being the player some hoped or projected him to be but it's too little too late considering this is his 5th season. No one thought Antetokounmpo would be who is he is. I remember when he was picked some analysts said he was a reach at #15 and he should have been a 2nd rounder. The scouting info wasn't there and for every #1 success story like Giannis there are dozens, perhaps hundreds, of busts who were drafted based solely on their measurements instead of their skill. There have been 2 All-Stars from that draft class, neither was in the lottery, Giannis and Gobert who was selected at #27. Gobert had the knock of being a European big and too many of them busted in the past. I know Len is a European big also but he played in the NCAA for 2 years. You can argue Noel should have been selected but he missed his entire 1st year, has had health issues since entering the league and our training staff probably advised against taking him for those reasons. Beyond that he hasn't looked that good. He played well in Dallas and since Cuban and the Mavericks love overpaying Centers they offered him 4 years for $70 million last offseason that he turned down, because he thought he was worth the max. No one offered Philly much for him despite being on the trade block since he was drafted, finally getting dealt for Bogut (expiring contract), Justin Anderson (end of the bench young player), and 2 second rounders. Noel hired Rich Paul to be his agent after turning down that contract from Dallas also, so he's determined to get paid this summer but won't have the qualifying offer to fall back on. The Suns could go after him if they wanted to but I doubt there is interest.
In the 2016 draft though Bender and Chriss were a good haul considering we went in with 3 first rounders and left with 2 top 10 picks. It was doubling down in a way since they were both seen as PF's but after watching them you can tell they can play alongside each other without any issue. Bender was a project since he was the youngest player taken but he's shown good improvement from last year and looks like a rotation player with a lot of potential. He's only played in 66 career games so far, which is far too early to call him a bust or not but I think as long as he stays healthy he'll be a solid NBA player. Of course you want more than that from a #4 pick but he's looked better than Len did during his 2nd year, he's looked better than Len during his 5th year. He only turned 20 a few weeks ago, so patience is needed with him. He's shooting much better, which is a plus, and his defense has been a pleasant surprise.
Chriss has regressed but I think that has to do with Watson more than anyone else besides Marquese himself. He shouldn't have ever been gifted the starting job last year, I think 7 or 8 games into the season. That helped build his ego which led to him being lazy and entitled this offseason, showing up out of shape for Summer League and the regular season. He's still not in game shape yet, or at least the shape he was last year. He was in even worse shape during Summer League, where he didn't want to be but he could have learned some things that would have helped him if he applied himself there instead of sulking. That was the first sign of attitude issues with him but I'm glad they came out sooner than later. He might have shown up in worse shape than he did for the season if they didn't have him play during the SL because that was only 2-3 months after the season ended. He shouldn't have fallen off that much in that short of time. I didn't buy into the Marquese hype some people talked up when the team went into tank mode after the All-Star break because I think his improvements came from playing alongside Ulis rather than Bledsoe. This year he needs to get back into shape and lose the attitude but he's looked a little better over the last 2-3 weeks than he did to start the year. Triano seems to get through to him more than Watson did, who lost him when he benched him for the Jackson/Warren frontcourt. He's still only 20 years old with just 105 NBA games under his belt, 92 of those have been starts. That is too many starts but nothing we can do about that now. Triano needs to keep him accountable and work with him to get him in shape, which it seems like he is.
Based on everything though, I don't think you can say for certain that McD has whiffed on his early 1st round picks, the jury is still out on that. Jackson has been in the NBA for 2 months and that's not enough time to call him a bust. He looked great against Detroit, like the player many wanted the Suns to draft, and since he's only 20 years old and new to the NBA we can't expect that nightly but it was good to see him show us what his future could be.