Great teams have balance. Pierce, Rondo, Ray, KG, Perk, Powe, Baby all can score inside. Granted, Ray and KG are primarily jump shooters. But both players have enough ability driving to the hoop that defenses have to respect it.
How many teams have more slashers/drivers? Rondo and Pierce are two of the best players in the league at taking it to the cup. When the defenses collapse on them, what happens? They kick it out to open shooters like House and Posey and Ray. That's called good basketball. The Lakers and Spurs championship teams were always stocked with shooters who could make defenses pay when Shaq/Duncan drew double-teams in the paint.