They are actually inching towards .500 which is good for Rondo... and I guess bad for our hopes of landing Cousins.
I never doubted Rondo's ability to rack up stats on a system that catered to him. As long as he's playing big minutes and controlling the ball at all times, he can be a statistical beast.
If you intend to run a modern "pace-and-space" offense built around ball movement and shooting, Rondo will prove to be a liability. It was clear that we were better without him 3 years in a row and instead of seeing him successfully adapt to playing Brad's system, Boston basically just let Rondo keep doing Rondo things during his final days... to the detriment of the team and the system they were trying to implement. Then he ends up in Dallas... which was at the time the shining example of a "pace and space" offense... and Rondo was predictably a disaster.
But as long as you give him the keys and let him run the show, he'll get you lots of assists. His 35% three point shooting deserves credit. Shooting 50% from the line and his team being 6 games under .500 is a problem, but they are actually 1.5 games out of the playoffs.