That's a bit hyperbolic after one game. I remember Danuel House beasting in the summer league. That said, he was absolutely the right pick at 2 considering Sengun was also acquired to fill a void in the paint.
1) Players need to work on PnR a greater amount 2) Josh Christopher and Green together wasn't working imo. Josh was aggressive when Green was sitting. Shades of Harden-Lin trying to pull off dueling banjos; but the strings were broken. 3) Marcus Foster, Anthony Lamb, Hurt need to shoot better if they are going to get playing time. The rest is just fine tuning with more practice and live action