I think people are worried about defense, speed, turnovers, and the middle being clogged up since they both like the low post and Steph likes to drive.
It's up to Isiah to work out an offensive scheme and get the players to execute well.
However, if the stories about Randolph's defense being bad are true (I haven't seen enough of him), then I do think the Knicks are going to have some serious defense and turnover issues even if the offensive scheme works. Unfortunately, if was defense and turnovers that cost us most of those close games last year.
Either Curry/Randolph are going to have to learn how to catch/pass better and play some defense or the Knicks are still going to have some problems.
We should keep in mind that a lot of other teams got better also!!!!