I will remain curious to see how ball-dominating Ellis will co-exist if the Spurs give the keys to Rondo.
I will remain curious to see how ball-dominating Rondo will survive if he's forced to adapt to a free-flowing share-the-ball offense. It didn't work in Boston. Not sure why it will work in Dallas.
Rondo did play with a ball-dominating Paul Pierce for most of his career, people seem to forget that... Rondo and Monta can play pretty well together. Remember when Danny tried to trade Ray for Monta? Those two will be unbelievable in the open court. You can add in Parsons to that as well since he's probably one of the more underrated guys when it comes to getting out in transition and finishing. Supposedly, better transition offense is one of the things Dallas hopes to accomplish with the Rondo trade - I think he'll help tremendously.
As far as him working in a share the ball offense, he seemed to try to buy in when he was here - but passing the ball to guys like Monta, Parsons, and Dirk is probably going to end in better results than passing to guys like Avery, Jeff, and Sully. I suspect that Carlisle will tweak things to fit Rondo's game in - that's what great coaches do. After halftime last night, he already adjusted and was using Rondo at the elbows and at the free throw line as a facilitator to combat the zone to pretty good success. Prior to the trade, I had watched a lot of the Mavs (I've mentioned ad nauseum that they're one of my league pass teams) and in addition to the "free flowing" stuff, they run a ton of pick and roll/pick and pop. So yeah, I think Rondo's will be a better addition offensively than you seem to be willing to acknowledge.