Its just one of those things with us: there is no credible alternative. We can ***** about Marco, but in the end until and unless we sign KMart, the "options" such as they are are Ben, who is just being miserable, 6'3" 200min out of the d-league Seth Curry, and James Anderson, in all his glory. Or our favorite Rondo/Curry pairing, which won't even be possible if Rondo doesn't go.
So yeah, you can complain about Marco, but there is no knockout punch argument about who else to play. Just hopes and speculations, which Karl himself may jsut as well have for career-long Marco to show up at some point.