James Harden was a liability on defense and a non-factor on offense during the Cavs' historic Game 1 collapse.

If the Cavs wind up losing the Eastern Conference Finals to the Knicks, they might look back at their Game 1 meltdown as the impetus for a significant offseason move.

James Harden's struggles to defend Jalen Brunson down the stretch stuck out as a big factor in the Cleveland Cavaliers blowing a 22-point fourth-quarter lead and losing Game 1 of…