I am willing to wait and see how well the team does from the perimeter this year before passing judgment simply because I expect improvement from Iggy, Williams and Young on their perimeter shooting. How much they will improve remains to be seen. We should have better mid-range shooting and post-up play in the half-court from Brand and eventually from Speights. We can always add bench players as three point specialists. Miller will never be a very good perimeter shooter.
My suspicion is that we will see a much better half-court game and a somewhat better perimeter game this year, but I also suspect that this team will need to replace Miller with a PG who can shoot rather than re-signing him to an extension.
BTW, our half-court offense beyond dribble drives and lob passes was nearly non-existent last year and was severely exposed by a good defensive team in the playoffs. Long term success/contention will likely require another shooter, probably at PG.