We actually are not that worse off when Rondo goes to the bench.
Do I like to see Rondo going to the bench? No.
Do I feel comfortable when Rondo goes to the bench? No.
But the data shows we are pretty much the same output of net production - probably because we are a little bit better defensively and a little bit worse on offense when Rondo goes to the bench.
I think that's more of a function of the KG 5/5/5 system. When Rondo goes out near the end of the 1st quarter, KG comes back in, bolstering the defense as the offense takes a hit.
Other than Terry and Lee playing together have consistently shown better defensive results than most (if not all) of the other PG-SG combinations we've used, namely Rondo and Terry together.
Let me put it this way, in just about any unit you can conceive, you're more than likely to have better defense with Terry and Lee playing together, than Terry with Rondo, yet that's our starting unit.
Lee and Rondo have some effective defensive units, so the key here is using Lee more, not using Rondo more.