I think John Wall is being under-rated here.
A Wall + Bosh combination is far more potent than is being given credit.
Washington also have good role players with good complementary skill-sets playing alongside them. A quality supporting cast. They are missing a big man who interior defense but their supporting cast have a lot of other good qualities.
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Edit: Actually, as I read some more posts, maybe it's Bosh who is under-rated and not Wall. Not sure. Anyway, as a combination, Bosh + Wall is highly under-rated.
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If that Washington were in the NBA, they would be an average to slightly above average defensive squad + an above average rebounding team + a top ten offensive team.