"Chris is obviously very talented and poses his own problems, but I don't think Kevin is that concerned with whoever's there," Rivers said.
Since Bosh arrived with James to play alongside Wade in Miami in July 2010, the Heat have won 72 percent (116-45) of their games with him in the lineup. Without Bosh, Miami has won only 52 percent of the time, going 12-11.
"We couldn't win without him for two years. And not only could we not win without him, we looked horrible without him," Spoelstra said. "So I think that was the bigger challenge. If and when we ever get to that point, we'll gladly take that challenge. He was our most important player for a long period of time."
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