Way too early to write him off
Right now, BC has made us into a middle ground playoff team in his 2 years thus far. What he does from now will define whether he's a success or failure. Rasho's expiring, what we can get for TJ, the coach, etc.
We're still in a solid position, I'm sure a lot of teams would love to have 2 core players like Jose and Bosh. With the league the way it is now most of the best teams seem to have the PG + big guy combo (Utah, New Orleans, Phoenix, San Antonio). Right now that combination is just a bit worse than than Utah and New Orleans', the PG is obviously not as good, but Bosh
is better than West and Boozer IMO. The difference with those teams is that they have a better 3rd-4th player after that (Peja/Chandler and Okur/AK) and much much much better coaching. If Bargnani
becomes Okur and we get a serviceable coach, we don't look too bad. The good news is we have lots of time to do it.