Still just 5 games, but with Rondo on the floor for his 104 MP the Cavs have a 92.8 DRtg as a team. Ridiculously low, dude still knows how to play defense/lead a defensive unit.
Something the Cavs were seriously lacking when Rubio went down (he was their best rotational player by DRtg with a 99.5 DRtg) was the defensive presence and frustration the activity of Rubio, Cedi, Stevens, etc who was out there with the 2nd group would cause. Rondo's presence has brought that back a bit.
The offense is still scuffling a bit with him, but starting to heat back up the last 2 games with him on the floor getting guys looks from their spots.