We need players who are the opposite of Beasley...guys with really high basketball IQs who play above their talent and are always fighting in every minute they get on the court because they just love the game. Carl Landry types.
Leon Powe types ... Glen Davis types ... Al Jefferson types ... I agree, I'll take hard-work and hustle over undisciplined talent every time ... but isn't it nice when you get both? 
Why did you include Jefferson in that group? Isn't he more talent than hustle? Kevin Love is the hard work guy of Minny's frontcourt. If we want someone who isn't undersized, Noah or Varejao.
What is more important -- hustle, or basketball IQ? Those are very different things, though many conflate them. T-Mac has an enormous basketball IQ. Powe has major hustle. You can't swap their names in those sentences.
Artest is a guy who works really hard, but does is love of the game the reason? Does he love the game anymore than Sheed? Or is he just a harder worker? I bet you Powe gives effort in anything he does, regardless of whether he loves the task. Same for Ray Allen. Does Baby the game more than a lazier player, or is he just (thankfully) hyper and full of energy?