How are we going to be tough on defense when Favors can barely stay on the court? Burke isn't exactly a good defender, Hayward does a good job, Rush will hopefully do good, but a lot of that depends on how he recovers from his injury. Kanter is a good post defender, but is average on help defense and doesn't move laterally that well.
I think people are overstating how good our young core is. Yes, they have a lot of potential, but it has yet to be realized. They will struggle.
And yes, your bench does win games in the NBA. Every single team that does well in the playoffs has a good bench. Every single one.
Hantlers continues to be under appreciated by the board. He has good takes and states them in such a was a kindergartner could understand.