The weird thing is, in his current role, the Cavs would be a worse team without him ... but that role is not worth all the money he will soon demand. So, I guess if things don't change, you might let the guy go.
Before the season started, if you told me he was going to walk, I would've thought it would crush the franchise (considering what they gave up). But now, it will just seem like a minor inconvenience.