Butler and Lebron and Kyrie all need the ball in their hands to be at the their most effective. Getting rid of Love for Butler also makes the Cavs awful on the boards. If they somehow did this I would be thrilled. I think it opens up way more issues for them then it solves. Also has a team ever been in full blow panic like this after a finals trip before? It is pretty awesome.
Tristan Thompson averaged 9.2 rebounds a game playing next to Love. Lebron James averaged 8.6 rebounds a game playing next to Love and Thompson. Al Horford led Boston at 6.8 rebounds a game. Horford, Bradley, and Crowder combined for 18.6 rpg. Those were Boston's 3 leading rebounders. James and Thompson alone were 17.8 rpg, and that is with Love taking rebounds that would have otherwise been available for Thompson.
I'd fully expect Thompson to get in the 11 to 12 range without Love. James I would expect in the 8 range again. Butler is a solid rebounder in his own right grabbing 6.2 last year (would have been 2nd on Boston). Cleveland won't lose much on the boards because they have multiple + rebounders on their team. I mean even Channing Frye grabbed 11.4% of available rebounds. Horford was at just 11.8%.
Love is a great rebounder without question, but it isn't like the Cavs are devoid of credible rebounders and rebounding was never a problem for them and won't be next year without Love. They will lose some of that skill obviously, but no where near what they would gain elsewhere.