I agree, and I need to do the same, though I think it's also true that they need to put forth better effort. Shouldn't be losing to the Wizards at home, especially when their best player goes 7-for-25/0-for-6.
I think that there are things you can judge. Effort is one of them. Roster construction is probably another one that you can at least talk about early, with the recognition that things can change. And, I think management decisions can be discussed. Extending Josh Richardson. Whether it made sense to salary dump Kemba in a season we're unlikely to be contenders. Whether we're missing certain elements.
You can opine but can you really judge? After 5 games? Look at the Red Sox. After the trade deadline, and the slump that followed, the GM was an idiot, horrible. The owners were cheap, didn't care about winning, blah blah... Then they beat the Yankees and the Rays and now Bloom is a lot smarter. The same is true for the Celtics. You can't judge the Richardson acquisition, for example, in full yet. You can't really even assess roster construction as players are still settling into roles.
As to effort, that is a different issue. If effort was bad in a game, that is pretty much it. The next game could be totally different. I guess it is fair to judge effort game to game.
We have the same record as the Lakers and the Nets and are only 1 game behind the Bucks. These early season symptoms may be foretelling real issues or they may just be early season abnormalities. There is no way to know after 5 games. I like our team. I think the ultimate weakness of the team is our bigs but so far, Horford, RWill, and even Grant have played well. But it is only 5 games in that regard too (only 3 for Horford).