When Pop gets upset with Kyle, he goes to Danny with the bench.
This is just my personal opinion of course, but I don't like Danny with that group, he strenghens their defense, but Danny is such a poor ballhandler and worse making decisions with the ball that it really makes them play terrible on Offense.
The bench plays a fast style, with a lot of passing, cutting, all perimeter players put the ball on the floor and consistently probe for a shot. As you know that is not Danny Green's style. In that free flowing style he tends to get worse.
Possibly the guy you are referring to was Kawhi, since he played 40 minutes. But the problem in the bench truly is not the wing.
It is the other 4, the bigs can't rebound or protect the rim, Manu is old and thus bound to have games like this, and Patty tends to chuck too much if no one else has it going on, instead of making real plays of others (its just not his talent).