Korver is fantastic in his role, but as soon as you take him out of that or try to make him something he's not, he's awful. He's not a flexible player, and asking him to try to flex, especially at 37 years old, is just not realistic.
When he's out there, he also needs LeBron out there. I think staggering him out there with LeBron and Love will make him more effective. Korver was at his best when he was stuck in one corner and Frye was in the other. We can pretty much replicate that same thing with Love when he gets back.
Clarkson / Hood / Korver / LeBron / Love looks like the perfect lineup of driving, kicking, and spacing to me. Defense might be suspect, but you could replace Clarkson with Hill if you so do please.