Put it this way, if we still had a shot of a good record without Rondo, there's no shot whatsoever of maintaining if Sullinger's "red flag" suddenly becomes a real issue.
Your general negativity deviates quite far from the mean.
Hey man, Sullinger is my favorite player on the team other than KG. Some nights this season he's been the only bright spot.
So news that he might miss some time, so soon after Rondo was lost for the season, is pretty good reason to be negative in my book.
I felt the same way when I found out he went back to the locker room. We knew this would eventually happen, though. Just need to wait and see if/how well it can be managed, over time...
Is Green not a bigger concern for you? I am tempted to make threads about his passivity/underachievement every other day. Have you not the urge to place your negativity in his direction!?