I Think Miami will do just fine this year and the next 5 with the big three under contract.
They looked a little lost at times yesterday, but as many have said James and Wade basically havnt played together yet, and Bosh has barely paid with Wade also, so they still arnt use to it,id say after around 30-50 games they will be far more in sync and they will be doing just fine between now an the first 50. Boston are a good team and have mostly played together a fair bit, so for miami to be close to them on Bostons home court is a great effort for their first outing together.
over the next 5 years baring injury they are going to be playing 400+playoffs games together, so sometime within that time they will be really scary i think.
I agree, especially when they get Mike Miller Back run Lebron at PG and have Wade and Miller on the wings. LeBron will get his chance to be 'Magic' and show his passing skills whilst penetrating and scoring on probably many smaller opponents (the opposition PG) when needed. Id expect if this worked Lebrons scoring would drop a bit say to 15-20 and his assists would be around 10 (possibly come close to averaging a tripple double), and Wades scoring would stay in the 25-30 range.
Good luck Miami i look forward to seing how this team turns out!