Here's my take on Koby and Griff
Griff went all in and pushed all his chips in immediately. We traded 2 firsts for Moz for one thing. We used every 2nd possible. He traded picks to get rid of Jarrett Jack and Zeller. He traded away Joe Harris for nothing. He traded for Korver only protecting top 10 for an already old guy when what we really needed was a defensive wing. His last truly good move was getting Channing. Don't forget, he pushed for Anthony Bennett.
Koby traded Kyrie at the worst time. Nothing was available. The right move would have been to hold onto him to trade for Leonard later(which no one would have liked because he was hurt all year) or one of the other guys who popped up like Butler or Tobias Harris. If Middleton and Brogdan were really available, that was probably the best trade.
Turning over the roster with Hood and others was the right move, but we didn't have the coaching staff to implement that.
Lue's coaching staff was inadequate in several ways. Guys didn't have roles. They were all expected to adapt to LeBron ball with essentially no coaching.
We know because
No role player ever played better under Lue.
Hill - retained by team we traded him to because of playoff performance
Hood - retained by team we traded him to because of playoff performance (should have been 6th man, I would have started JC over JR. Jc played well with Lebron and Hood didn't)
Longabardis defense has been proven not to work over multiple years at this point. JB Bickerstaff is accumulating more and more evidence that while this team may not have elite defensive potential, it can certainly be competent with even a simplistic NBA defense that is realistic about the players on the floor. #15 in defense instead of the worst in NBA history 5 games in after a month of coaching.
I don't want to say Lue is bad and Beilein and Blatt were good, but Lue was able to win it all taking an established team that had gotten into a groove to the championship. He never had a single roleplayers who grew or got better in his role and we saw that same thing from Drew. Lue's strengths were coaching stars and relating to them and exploiting weaknesses in the other team both offensively and defensively. No development, very little practice, and riding horses hard that should have been out out to pasture.
He never integrated those new guys. The only guy he integrated o to the team was Channing and both he and Korver were old vets like Richard who knew their roles before they got here. He also allowed Longabardis to torpedo the defense and implement his stupid system after having early success against Minnesota and the Celtics with a stripped down simple NBA defense.
People can downplay the effect of the horrible defense, but it led to a lack of cohesion, fingerpointing, and guys not trusting each other. Every guy other than LeBron went into those playoffs with career low confidence.
Anyway. I think Koby has done the right things from firing Lue, to drafting well, to asset accumulation. No everything has not worked out, but I do think he has made lemonade out lemons when he has made mistakes and it is good he will be around until a decision on Beilein has to be made. He's going to see the first part of the rebuild through.